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Chasing Skinny Is Undermining Women’s Long-Term Strength

Stephanie EstimaSteven BartlettThe Diary of a CEOMonday, June 29, 202625 min read

Dr. Stephanie Estima, a chiropractor and women’s health clinician, argues that women’s fitness advice has too often made thinness the goal at the expense of strength, recovery and long-term capacity. In a Diary of a CEO interview, she makes the case for replacing the pursuit of “skinny” with progressive resistance training, adequate fueling, anatomy-specific coaching and recovery habits that protect muscle, bone, connective tissue and pelvic health over time.

The wrong target is making women weaker

The core of Stephanie Estima’s argument is not that leanness is inherently unhealthy. It is that “the pursuit of skinny at all costs” has become the organizing principle of too much women’s fitness advice — and that this target quietly trades away the capacities women need over a lifetime.

She describes the prevailing model as one of subtraction: lose weight, lose a dress size, become smaller, take up less space. She wants the frame reversed toward what women can gain: muscle, bone density, connective tissue capacity, joint tolerance, strength, competence, and a body they can trust.

I want women to stop being losers. I want them to stop trying to lose all the time.

Stephanie Estima

The scale, Estima says, is “just a reflection of your relationship with gravity,” but women are taught to treat that number as a proxy for worth. Her concern is that when slimness becomes the supreme goal, women often become less likely to do the things that protect them: lift sufficiently challenging weights, eat enough to recover, build muscle, and preserve bone density.

Her example is deliberately stark. If a woman can fit into a coveted dress size at 40 but has osteoporosis at 65, Estima says she “hasn’t won” — she has been tricked. Osteoporosis was defined on screen as weakened bones that are more likely to break, especially after menopause when bone-protecting estrogen drops. The same note added that low muscle mass can increase risk because muscles help load bones and keep them strong.

Estima grounds the argument in both clinical and personal experience. She says she has seen tens of thousands of patients over 20 years in practice, after studying neuroscience and psychology at the University of Toronto, working as a fitness instructor and personal trainer, and training at the Canadian Memorial Chiropractic College. Across that clinical career, she says the same pattern kept appearing: women pursuing health through restriction, smaller bodies, and punishment.

She also lived the pattern herself. She competed in a figure competition after following the formula she had been taught: lots of cardio, calorie restriction, and recovery treated as something to earn. On stage, she says, she was at 11% body fat. She had already lost her period for two or three months, later had hormonal issues, and regained the weight she had lost. Estima says women have roughly 10–13% essential body fat and that, for many women, a healthy range is closer to 18–25%. A DOAC note gave broader proposed adult body-fat ranges of roughly 13–22% for men and 25–33% for women, while emphasizing that healthy thresholds vary by age, training background, and clinical context.

The most confusing part, she says, was that external validation peaked when her health was visibly deteriorating. In the weeks before the competition, she was starving, overworked, not sleeping, and without a period, but people told her she looked amazing and asked for her program. That mismatch — public praise at the moment of private breakdown — is central to her critique. Women learn to hitch their worth to outside compliments rather than to the function and resilience of the body they live in.

The four archetypes are patterns of self-sabotage, not diagnoses

Estima organizes common women’s fitness struggles into four archetypes. They are not clinical diagnoses, and she says women can move between them. Their purpose is to name recurring patterns: paralysis, fear of weight gain, punishment through exercise, and a healthier integration of training, food, and recovery.

ArchetypePattern Estima describesFirst correction
Overwhelmed OliviaParalyzed by conflicting health and fitness information online; afraid to start and fail again.Start with quick wins, such as 5,000 to 7,000 steps a day, before layering more habits.
Skinny Fat SophiaThin on the outside but losing muscle and bone; avoids heavier weights and restricts calories to preserve a small physique.Gradually eat more and begin lifting heavier weights with enough challenge to build muscle.
Exorcist EmilyWorks intensely in the gym but under-eats; may use workouts as punishment.Match training effort with adequate food, protein, recovery, and mandatory rest.
Dialled-In DianaTreats movement as self-care; eats to support strength, recovery, and pleasure.The target state: strength, nutrition, recovery, and emotional grace working together.
Estima’s four archetypes for common women’s fitness patterns

“Overwhelmed Olivia” is the woman paralyzed by conflicting health information. She sees one person online saying plants are trying to kill her, then another saying plants provide fiber and phytonutrients. She sees one coach say light weights and high reps are necessary to avoid bulk, and another say muscle grows when it is brought close to failure. Estima calls this “infobesity”: so much information that it becomes unusable.

Her recommendation for this archetype is deliberately modest. Overwhelmed Olivia does not need A-to-Z; she needs A-to-B. Estima suggests starting with walking and aiming for 5,000 to 7,000 steps a day, so the person can experience success in one area before adding more habits.

“Skinny Fat Sophia” is the archetype Estima says she sees most often. The technical term she uses is TOFI: thin on the outside, fat on the inside. This woman may not present as obese, but her body composition is moving in the wrong direction: less muscle, less bone, and higher risk because she avoids heavier weights and restricts calories to preserve a thin appearance. She may walk, do yoga, or do Pilates, but she is afraid of heavier resistance training.

Estima is careful not to dismiss Pilates. She says she loves it and does it twice a week. Her narrower criticism is that Pilates is “not the main strategy for muscle building.” When Skinny Fat Sophia gradually eats more and begins lifting heavier weights than the “2-pound weights” she may be using in class, Estima says the common response is disbelief: “I can’t believe I’m losing fat, I can’t believe I’m losing weight by eating more.”

“Exorcist Emily” has no problem getting to the gym or working hard. Her problem is the mismatch between effort and fueling. She trains intensely but still carries the Skinny Fat Sophia mentality around food, under-eating because she is afraid of gaining weight. Estima says she was this woman after a divorce, when her children were young. She trained with grief and intensity, using the gym partly as punishment, then followed the workout with insufficient calories.

The healthier target is “Dialled-In Diana.” This woman sees exercise as self-care rather than punishment. She eats to support lifting, recovery, and pleasure. She prioritizes strength, nutrition, and recovery, and gives herself grace. Estima’s own phrasing is blunt: women should give themselves “some fucking grace” with recovery.

The archetypes also clarify her approach to fat loss. Steven Bartlett raises the common request to lose belly fat, and Estima answers directly: “You can’t actually spot reduce.” Belly fat cannot be targeted in isolation. Reducing overall adiposity generally requires strength training and, often, a caloric deficit.

But Estima dislikes the simple “eat less” message because she believes it is hard to sustain long term. Hunger hormones and compensatory drive can push people to eat more. For women in particular, she says she often finds it easier and healthier to work more on the “calories out” side: more exercise, more walking, more daily movement, rather than pushing food lower and lower. Her point is not that calories do not matter; she explicitly agrees with Bartlett that overconsumption is defined by total calories. Her concern is that building muscle, bone density, collagen, and connective tissue requires enough substrate — enough calories and nutrients — to support adaptation.

Carbs and fasting should be temporary tools, not identities

Estima’s treatment of diet is less anti-diet than anti-permanence. She supports lower-carbohydrate and ketogenic diets for some populations and temporary goals, including women with type 2 diabetes or PCOS/PMOS, where insulin resistance can be part of the picture. DOAC’s on-screen notes were more cautious: short-term ketogenic diets may improve certain metabolic markers in people with type 2 diabetes and PCOS/PMOS, particularly when combined with calorie restriction and weight loss, but lower-carb diets are not suitable for everyone and should be personalized.

Her objection is to what happens after temporary success. People lose weight on a low-carb diet and conclude that carbohydrates were the problem, so they should avoid them forever. Estima compares that to taking antibiotics for 10 days for a bacterial infection and deciding to keep taking antibiotics for life to avoid ever getting sick again. In her view, that is the wrong inference.

For women, she argues, long-term carbohydrate restriction can become a problem, especially if it contributes to insufficient total calories or poor macro balance. Symptoms she associates with thyroid dysfunction include feeling cold, cold hands, heavy menstrual bleeding, hair shedding, and thinning at the outer third of the eyebrows. The thyroid was defined on screen as a butterfly-shaped gland in the neck that produces T4 and T3, hormones involved in metabolism, temperature, heart rate, and energy. The same note said nutritional ketosis may lower active T3 and shift the T3:T4 balance, though that does not always mean thyroid disease.

Estima’s positive case for carbohydrates is practical: mood, sleep, and gym performance. She says that when she eats bread and omelettes before weekend training, her performance is better. She rejects the idea that carbohydrates are uniquely fattening through the carbohydrate-insulin model. The issue, she says, is overconsumption of carbohydrates, fat, and total calories — not carbohydrates as a category. A DOAC note described the carbohydrate-insulin model as a debated theory whose key predictions have not been consistently supported in controlled studies, while noting that the debate continues.

Her view of fasting follows the same logic. Long fasts — 20 hours, 24 hours, 36 hours, 72 hours, and multi-day fasts — may reduce intake, but they do not teach a person how to eat when not fasting. Estima says she once believed fasting was the key, especially during her Skinny Fat Sophia and Exorcist Emily periods, when she equated less food with better results.

The specific female concern, in her account, is reproductive sensitivity to nutrient availability. She describes the ovaries as metabolically active and constantly scanning whether the environment is safe for pregnancy. If a woman is fasting frequently, she may send what Estima calls a famine signal: conditions are not safe, so producing an egg is not a priority. Bartlett summarizes the implication — the menstrual cycle can shut off as a way to prevent pregnancy — and Estima agrees. Functional hypothalamic amenorrhea was defined on screen as a reversible form of absent periods often linked to undernutrition, weight loss, stress, or intense exercise disrupting hormones, though amenorrhea can have many causes.

Her preferred “fast” is modest: stop eating two to three hours before sleep, sleep eight or nine hours, and eat in the morning. That produces roughly a 10- or 11-hour overnight fast without compressing the eating window so much that sufficient calories, protein, carbohydrates, and fats become hard to consume. She is especially skeptical of the pattern where women have coffee in the morning and push the first meal to 11 a.m. or noon.

Pre- and post-workout fueling are treated with the same pragmatism. Estima says the old idea that a person must drink a protein shake within 15 minutes after training is largely false. Muscle protein synthesis is not limited to the immediate post-workout window; depending on training status, she says muscles are building “little protein factories” for 10 to 72 hours. The priority is sufficient protein and total calories across the day.

Before training, her ideal is some protein and carbohydrate to raise blood sugar and provide available substrate. She admits she does not always do this during the week because she trains around 6 a.m. and dislikes eating that early. In those cases, she uses ketones, while acknowledging food improves her performance “100% of the time” when she can eat before training. DOAC’s note on exogenous ketones said they quickly raise blood ketone levels and may affect fuel use, inflammation, gene activity, and energy production, but that evidence for performance or broader health outcomes remains mixed.

Women need progressive overload, not fear of bulk

Estima treats fear of “bulking up” as one of the most damaging myths in women’s fitness. Women worry that progressive overload — heavier weights, more sets, more repetitions, greater training volume — will make them look like physique competitors or bodybuilders. Her analogy is that driving to the grocery store does not make someone Lewis Hamilton.

She says 97% to 98% of women do not have the hormonal environment to bulk in that sense, though she acknowledges genetically gifted outliers. DOAC’s explanatory note said men have roughly 15 times higher testosterone on average than women, helping explain larger baseline muscle mass and slightly greater absolute hypertrophy, while women still show similar relative muscle growth from resistance training.

What some women interpret as “bulk” early in training may be temporary thickness from muscle swelling or inflammation under a layer of fat. As body fat changes, muscle definition appears differently. Estima’s advice is not that every woman must immediately lift maximally heavy; it is that building muscle requires sufficient challenge.

Progressive overload can be achieved through load, volume, density, shorter rest periods, or other ways of increasing difficulty. Heavy weights are one route, not the only route. That distinction matters for women who feel intimidated by free-weight areas, deadlift platforms, machines, or gym spaces culturally coded as male.

Bartlett describes men gravitating toward squats, deadlifts, presses, and pull-ups; Estima pushes back on the category. Those are not “male exercises,” she says. They are fundamental human motor patterns. The fact that men more often perform them does not make them male.

Her broad target for strength training is three or four days per week, alternating upper and lower body and organizing around pushing and pulling patterns. For women whose goal is body composition and curves, she identifies five priority areas shown in her book diagram: lateral deltoids, lats, glutes, hip adductors, and deep core/pelvic floor.

The aesthetic argument is that deltoids and lats widen the upper frame and create the appearance of a smaller waist, while glutes and adductors shape the lower body. The functional argument is at least as important: these muscles support stability, posture, knee mechanics, pelvic health, and fall prevention.

For those target muscle groups, Estima gives a simple volume benchmark: about 10 sets per week per muscle group. A practical glute example displayed in the source is 4 sets of hip thrusts, 3 sets of squats, and 3 sets of Romanian deadlifts, done in one session or spread across the week.

10 sets
per week per priority muscle group, in Estima’s baseline recommendation

Intensity matters more than simply showing up. Estima says results can come from even two days per week if the muscle is taken close to failure — roughly one to three repetitions shy. She describes signs that a set is approaching that point: range of motion becomes harder to maintain, rep speed slows, the same weight feels subjectively heavier, and effort feels like an 8 or 9 out of 10.

Female anatomy changes the cueing, not the need to train

Estima’s biomechanics argument is that women and men can benefit from the same fundamental movement patterns, but women are often coached as if their anatomy were identical to men’s. She uses pelvis models and a Q-angle diagram to explain why that can be a problem.

The female pelvis, she says, is wider and shallower, shaped to allow a baby to pass through. The male pelvis is narrower. Because the female pelvis is wider, the femur often angles more aggressively inward toward the knee. That creates a larger Q angle and makes women, compared with men, more prone to a knock-kneed position — the knees moving toward the midline.

The on-screen Q-angle diagram compared male and female skeleton legs, with the female angle shown as wider and labeled as an increased Q angle. Estima uses that diagram to connect anatomy to the stressors placed through the knees and ankles. In her account, that angle affects walking, jumping, squatting, lunging, and running.

Knee valgus is the knee collapsing inward during movement. A DOAC note said it can increase strain and is linked with higher ACL injury risk, especially when fatigue affects movement control. Estima adds that as women fatigue, the knee may tend to come inward, placing more shear forces through the inside of the knee. Another note defined shear forces as sliding forces across tissues rather than straight compression; excessive shear can stress ligaments and cartilage.

Estima does not say knees moving inward is automatically wrong. Her point is whether the body has enough muscular control to support that motion. The glutes, especially the gluteus medius — the “upper shelf” muscle — help counter the femur being pulled inward. That is one reason she emphasizes glutes beyond appearance: they stabilize the spine, knees, ankles, and the whole body.

Her squat demonstration makes the point practical. Traditional cues often tell people to set feet hip-width apart with toes forward. Estima says that position limits her depth and causes her chest to collapse. Many women, she says, prefer and perform better with a wider stance and toes turned out. Because the female femur tends to sit more internally rotated, external rotation can allow a deeper, more comfortable squat.

She qualifies this carefully: not all women and men should squat differently, and some women do well with traditional cues. The key is to “play and see what feels good.” The cue should fit the anatomy and the person, not a generic template.

The same logic applies to lunges and split squats. As a person decelerates into the movement, the femur and tibia internally rotate and the foot pronates. Pronation is often treated as bad, but Estima says it is needed to load the spring. The issue is not preventing motion but developing the hip stabilizers, adductors, abductors, glutes, and lower-leg muscles that allow the motion to be controlled.

This leads into her fall-prevention argument. To prevent a fall, a person needs to get the hip flexor up quickly, dorsiflex the foot so the toes clear the floor, and use glutes, adductors, and abductors to absorb and stabilize. The muscles that create an “hourglass” figure also help prevent trips from becoming fractures.

Cardio is not punishment, and sprinting is not just for the young

Estima rejects the binary that women must choose between lifting and cardio. Cardio, she says, is “life.” The problem is not cardiovascular work itself but using it as punishment for eating or as a way to get smaller at any cost. Properly framed, cardio supports healthspan and lifespan.

The discussion becomes specific around PCOS/PMOS and the concern that sprint training or HIIT can backfire by spiking cortisol and insulin. Estima first challenges the assumption that cortisol spikes are bad. Cortisol is necessary for waking up, and exercise itself produces normal glucose and cortisol spikes because intense training requires sympathetic drive.

Her caution is against making women afraid of predicted physiological spikes. Cortisol was defined on screen as a steroid hormone involved in stress, sleep, metabolism, blood pressure, and immunity, with short spikes helping the body respond acutely and frequent or prolonged elevation potentially harming long-term health. Estima’s distinction is the same: context matters.

For PCOS/PMOS, she says the body often behaves more like a type 2 diabetic body, with issues around glucose disposal and insulin sensitivity. Muscle contraction helps pull glucose into muscle cells whether insulin is present or not, so training is valuable. She supports zone 2 cardio for endurance and also supports high-intensity interval training or sprint interval training if appropriately used. Her version of sprint interval training is 10 to 20 seconds all-out, “ovaries to the wall,” followed by recovery, repeated four, five, or six times if capacity allows.

She argues that people should not stop sprinting as they age. Sprinting can increase VO2 max, which she defines as the ability to take oxygen into the lungs and distribute it to cells. DOAC defined VO2 max as the maximum rate at which the body can take in and use oxygen during intense exercise, relative to body weight, and called it a leading marker of cardiorespiratory fitness and a strong predictor of longevity. Estima says that just as muscle declines roughly 1% per year if untrained, VO2 max declines about 10% per decade if not actively worked.

10%
VO2 max decline per decade if it is not actively trained, according to Estima

Her practical example is the older family member who gets winded carrying groceries or walking stairs and assumes it is just aging. She rejects that explanation: it is “not a function of aging,” she says, but a loss of capacity.

She sprints outdoors when possible and uses indoor machines when weather prevents track work. One protocol she uses is the Norwegian 4x4: four minutes at 85% to 95% of maximum heart rate, followed by a three-minute break, repeated four times. She describes it as unpleasant during the work and rewarding afterward.

A DOAC note summarized evidence shown on screen: eight weeks of sprint interval training increased estimated VO2 max by 9.7% and improved cardiac function in overweight postmenopausal women; another 12-week HIIT study increased maximal mitochondrial respiration by 69% in older adults and 49% in younger adults, reflecting greater mitochondrial capacity rather than efficiency. Estima’s interpretation is optimistic: older women may have more upside than they think, and “it’s never, ever, ever too late.”

Jumping and hopping belong in the same category. Estima invokes “use it or lose it”: if a person stops jumping, sprinting, or squatting, the body stops preserving the capacity to do those things. For bone density, she says weighted-vest jumping or plyometrics can increase strain magnitude and strain rate on bone, driving positive bone remodeling. DOAC’s note said long-term studies in postmenopausal women suggest weighted-vest jumping helps maintain hip bone density and may improve femoral-neck bone density.

For people who cannot yet jump, Estima offers a regression: isometric calf holds. Rising onto the toes contracts the gastrocnemius and loads the Achilles tendon. Mechanoreceptors detect stretch or contraction and signal remodeling to meet the demand. From there, a person can progress to little hops and then jumps.

Connective tissue is the stage that lets strength perform

Estima argues that muscle gets too much of the attention. She loves muscle and trains it, but she compares it to “Beyonce” on stage: impressive, but useless if the stage is rotting. The stage is connective tissue — joints, tendons, and ligaments. Without connective tissue capacity, strength cannot be expressed safely.

One way to train tendons and ligaments, she says, is to bias the eccentric portion of lifts. Concentric means the muscle shortens and bones come together; eccentric means the tissue lengthens under load. Estima emphasizes “stretching under load,” not passive stretching. That loaded stretch tells the tendon it needs more tensile strength.

This is where she distinguishes Pilates again. Pilates is useful for muscle endurance, posture, and pelvic floor health, and she says it makes her happy. But she does not think Pilates alone loads bones, builds sufficient muscle, or develops tendons and ligaments enough for aging. Her concern is the woman who is slim and pleased with that outcome but not building the load capacity she will need later.

Deceleration is another neglected capacity. Acceleration is speeding up; deceleration is stopping without dumping force into the joints. Tendons and ligaments must absorb kinetic energy. In sport, Estima says the ability to stop and change direction can be more predictive of going professional than vertical jump, acceleration speed, or beep tests. Outside sport, it matters because people trip on rugs, stairs, and uneven surfaces.

She demonstrates simple no-equipment tests and exercises. The first is the “X plank,” a side plank variation that tests hip stability and mobility. The person stacks the feet, aligns wrist and shoulder, lifts the top arm, and lifts the top leg, trying to hold for 30 seconds. Estima frames it as both diagnosis and care plan: if the person cannot do it, that is what they train. Bartlett struggles with the full version, and Estima gives a regression on the knees, which still recruits the glute medius but with less stress.

The second is a floor-to-stand test. Estima says that in cultures where people sit, eat, and toilet on the floor, their fall risk is “literally almost zero.” In the source, this is presented as Estima’s claim in support of more floor-sitting and floor-to-standing practice, not as a cited population estimate. She has Bartlett sit with crossed feet and stand without using his hands, then repeat with the feet crossed the other way. The movement recruits ankle mobility, quads for knee extension, glutes for hip extension, and the whole leg. It is simple, but it exposes asymmetry and capacity.

Other no-equipment movements she likes include pushups, bodyweight squats, glute bridges, and improvised loaded carries or lunges using household objects such as a bag of dog food or cat food. She still expects bodyweight squats to progress to weight eventually, but says many people first need better technique.

Supplements sit behind the training hierarchy

Estima prefaces her supplement advice by calling herself a “special category of nerd.” She takes foundational supplements and others because she is interested in the research. For the general population of women, she identifies a first tier, but the hierarchy remains clear: supplements sit behind training, sufficient food, recovery, and consistency.

Creatine receives her strongest endorsement. Estima describes it as having moved beyond its “bro supplement” reputation and says every woman can take 3 to 5 grams daily. She cites Dr. Darren Candow’s analogy that lifting weights builds the cake and creatine is the icing: it does not replace resistance training, but supports performance and strength when paired with mechanical stimulus.

For perimenopause, she sometimes takes 10 grams after poor sleep, saying it helps cognition, awareness, and alertness. DOAC’s note explained that creatine crosses the blood-brain barrier relatively slowly, so larger doses may be needed to raise brain creatine and support cognition. Estima says she notices less muscle fullness and lower workout energy when she is not taking creatine consistently.

Vitamin D3 with K2 and omega-3s are also in her foundational tier. Estima says D3 with K2 matters for reproductive hormone production, inflammation, and cognition, and recommends 4,000 IU daily as a minimum for most people. The on-screen note was narrower: D3 helps absorb calcium, K2 activates proteins linked to bone metabolism and blood clotting, and stronger claims about hormones, cognition, or everyone needing both together are not firmly proven. For omega-3s, Estima recommends 2 to 4 grams a day and says they are well established for inflammation and cognition. DOAC’s note emphasized EPA and DHA and advised checking the combined EPA plus DHA amount rather than only the total fish oil dose.

Collagen, in her view, is unfairly dismissed because it is poor at stimulating muscle protein synthesis. She agrees it is not a good muscle-building protein because it is low in leucine. But she argues muscle is not the only tissue women train. Tendons, ligaments, joints, fascia, skin, hair, and nails also matter. She takes 10 to 15 grams a day, sometimes in coffee because that is how she adheres. Her preferred form is hydrolyzed collagen types I, II, and III. Vitamin C appears in her routine partly because she pairs it with collagen and partly because she views it as a general antioxidant; DOAC’s note added that vitamin C is essential for collagen production but does not directly improve collagen absorption in the gut.

Magnesium glycinate is her “tried and true bestie,” used for relaxation, sleep, and muscle recovery. The practical point is adherence. She keeps magnesium near salt and pepper at lunch and in the bathroom at night, because placing supplements beside existing habits increases the likelihood she will take them. Electrolytes are more situational: she uses them on heavy sweat days, such as long outdoor tennis sessions, rather than all the time. Protein shakes are also situational for her — useful when traveling or falling short, but not a replacement for the whole-food protein she typically eats.

Asked about GLP-1s and hormone therapy, Estima gives a broader warning about outsourcing. With medications, including menopause hormone therapy, she says people often marry themselves to the benefits and divorce themselves from possible side effects. Hormone therapy may help with sleep, mood, night sweats, hot flashes, and thermoregulatory symptoms. But it will not go to the gym, lift weights, build a healthy plate, set boundaries with a boss, manage stress, recover, or do cardio.

Her preferred frame is combining medical tools with lifestyle medicine: training, stress management, recovery, and cardiovascular work. Recovery begins with sleep. Estima calls sleep “S-tier.” It is when growth hormone and IGF-1 surge, muscles grow, and the brain “cleans itself out.” She acknowledges sleep can be difficult in perimenopause but still puts it at the top of the hierarchy.

Below sleep, she mentions sauna if available, calling it “lazy cardio.” DOAC’s note described sauna as passive heat exposure that raises heart rate and blood flow in a way that can resemble light-to-moderate exercise, and said regular sauna use has been linked to lower blood pressure and reduced cardiovascular disease risk, while supporting rather than replacing exercise.

The broader claim is that there is no “easy button.” Estima is not arguing against medical help, supplements, or specific diets. She is arguing against treating any of them as substitutes for mechanical loading, sufficient food, recovery, and progressive capacity.

After childbirth, pelvic floor advice has to be specific

Fitness after childbirth, in Estima’s account, cannot be reduced to “get cleared and get back to it.” The anatomy and load demands are different, especially around the pelvic floor.

The pelvic floor is a hammock or sling of muscles running from the pubic bone to the coccyx, including the pubococcygeal muscles. Unlike larger visible muscles, these muscles are working all the time to support pelvic organs.

Women, she says, have a mechanically more complicated pelvic floor than men because there are three openings — urethra, vagina, and anus — which means less continuous surface area for support. Pregnancy adds hormonal changes, the weight of the baby, and birth itself. Relaxin was defined on screen as a hormone produced mainly by the ovaries and placenta that helps soften connective tissue, widen blood vessels during pregnancy, and loosen the pelvis for birth.

After birth, Estima says women should work with their OBGYN, midwife, or care provider to be cleared for exercise. Once cleared, they should not necessarily return immediately to extremely heavy loads and high intensity, because healing and pelvic floor load capacity may not be restored.

Kegels can help if the pelvic floor is weak. Estima describes them as a lifting and relaxing action, like “zipping up a zipper,” and says they can be done discreetly. But she adds an important caution: if a person has a tight pelvic floor and trouble relaxing, Kegels may make symptoms worse. A pelvic floor physiotherapist can diagnose the difference and guide training. DOAC’s note made the same distinction: Kegels can help bladder control, childbirth recovery, and prolapse symptoms, but technique matters and some people benefit from pelvic-health physiotherapy.

Sex also enters the discussion through function, not titillation. Estima included “transformative sex” in the subtitle of her earlier book because she believes women enjoying sex remains taboo. She describes a patient who originally presented with mechanical low back pain but later disclosed that the real problem was pain during intimacy — specifically, pain getting on top of her husband. After treatment and strengthening work, the patient could do what she had wanted to do. Estima’s point is that low back pain, pelvic mechanics, hormones, libido, and sexual enjoyment are legitimate parts of women’s health, not side issues.

The final aim is a body that can be trusted

By the end, Estima’s personal account becomes the clearest expression of her professional argument. At almost 50, she says she inhabits her body in a way she wishes she had in her 20s. In earlier decades, she was punitive toward herself and said things to herself she would never say to another person.

Weight training began for the same reason it begins for many women: she wanted to look better, build muscle, and lose fat. But she stayed with it because it “provided me a way back home.” It taught patience, forgiveness, and a different relationship with failure.

That is why her advice repeatedly returns to capacity rather than appearance: sprint so stairs do not become a threat; lift so bones, muscles, and connective tissue have reason to remain strong; eat enough to recover; treat cardio as healthspan work, not punishment; learn anatomy so movements can be adapted rather than abandoned; and stop treating the smallest version of the body as the successful one.

Estima closes her practical message to the archetypes directly: Overwhelmed Olivia does not need to know everything before starting; Skinny Fat Sophia does not need to fear weights or eat “like a bird”; Exorcist Emily does not need to keep punishing herself through training. “You’re not behind,” she says. “You are absolutely enough. And don’t be so hard on yourself.”

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