Congrats, You’re Skinny. Your Bones Have Notes.

Craig Liebenson

22 hours ago

5 min read

Updated: 3 hours ago

The wellness industry has never paid women more attention. That isn't the same as caring about them, and the difference is where all the money is.

There's a particular kind of tired that has nothing to do with sleep. It's the tired of a woman who has done everything right: the rings, the wearables, the supplement stack, the protocol she screenshotted at midnight. She reads the studies. She tracks the metrics. And she still feels one step behind her own body.

That feeling isn't a personal failing. It's the business model.

For most of medical history, women's bodies were an afterthought. Studies ran on men. Symptoms that didn't fit the male template got filed under anxiety. So when an industry finally started paying granular attention, to your cycle, your sleep, your “biological age”, it felt like relief. Like being seen at last.

But a lot of that attention was never care. It was surveillance, repackaged and sold back to you at a markup, carrying an old message in a flattering new voice: your body, as it is, is a problem we can help you manage.

The old pressure told women to be smaller. The new one tells them to be optimised, which is much harder to argue with because it wears the costume of health. Don't just be thin; be metabolically flawless. Don't just look young; be biologically younger than your age, with a panel to prove it. Every stage of life now arrives with its own protocol.

Notice the project is never finished. That's not a flaw in the design. That is the design. A finished woman isn't a repeat customer.

You can spot the noise by how certain it sounds. Real physiology is humble; the honest answer to most questions about your body starts with it depends and often ends with we don't fully know yet, especially for women, whose bodies have been so under-researched that the uncertainty runs wider. But it depends doesn't sell. Certainty does. So the market takes a preliminary finding and calls it a protocol, bottles a hopeful result as a supplement and meets a real hunger for answers with premature ones: confident, specific, purchasable, often wrong. We've been here before. It used to wear a lab coat. Now it wears activewear.

And here's the part that should make you angry, because it's the tell that this was never really about your health.

The single most powerful thing a woman can do for her long-term body is the one thing the industry has spent decades steering her away from.

Not Pilates. Not the reformer. Not the greens powder, not “toning”. Lifting heavy things. Building real muscle. Loading your bones until they're forced to get denser.

The physiology isn't ambiguous, which is exactly why it's worth trusting. Women reach peak bone mass in their late twenties to early thirties, right now for a lot of you, and then begin a slow, silent decline that turns into a steep drop at menopause. Walking and calcium help maintain what's there; they can't build what you're already starting to lose. That takes mechanical load, the kind of stress only real resistance creates. And muscle itself is one of the clearest predictors of how long you'll live: the people with the most of it have meaningfully lower mortality than those with the least, on the order of eighteen per cent.

So the genuinely empowering, evidence-backed move is to get strong, take up space, add muscle, almost word for word the thing the culture has spent a century telling women not to do because it isn't dainty, isn't “feminine”, won't keep them small.

And notice the sleight of hand in the language itself. “Tone” was never a real thing your body does. There is no physiological state called toned. What the word actually describes is visible muscle sitting under low body fat, which means the honest recipe is build the muscle, then reveal it: two ordinary processes with unglamorous names. “Tone” and “sculpt” and “long, lean lines” are marketing words invented to sell women a made-up training category, precisely so no one has to say the real one out loud: lift heavy things, get stronger, take up more space.

The signal and the noise point in opposite directions. The noise sells a smaller body. The signal is asking you to build a stronger one.

The confidence you keep being sold was never going to arrive in a package. It can't. Every product that promises to finally make you feel secure has a commercial stake in that security never quite landing. Outsourced confidence is a subscription, and it has to lapse so you'll renew. The other kind, the kind that comes from actually understanding your own body, from hearing a claim and asking where's the evidence, who profits from my believing this, does this respect my body or treat it as a defect?, isn't for sale. No one can make you pay to keep it.

So separate the signal from the noise. The signal respects your body and admits what it doesn't know. The noise flatters your fear and asks for your card.

The moment you can tell them apart, something shifts. You stop being a market. You go back to being a woman with a body, one that is ageing, like every living thing does, and is worth building strong and honouring exactly as it is, at every stage, rather than shrinking to fit whatever they're selling this season.

That's the confidence they're not selling.

It's the one they can't.

Sidebar: What the evidence actually says

Offered plainly, because you shouldn't have to buy it back.

Load is the active ingredient. Bone and muscle rebuild in response to mechanical stress. Walking and calcium help maintain what you have; they don't build what you're losing.
The line between “strength-ish” activity and the real thing is effort. Pilates, bodyweight flows and light circuits build coordination, control and mobility, genuinely valuable, but rarely load the body hard enough to grow muscle or bone. Resistance training means working a set to within a rep or two or three of the point where you couldn't do another.
Roughly: sets landing somewhere in the 5–30 rep range, taken close to that limit, about twice a week, on the order of 90–120 minutes total.
Earlier is easier, but it's never too late. Progressive resistance training is one of the only interventions shown to build bone even after menopause.
Keep the Pilates if you love it. This isn't strength instead of movement. It's strength as well.

Contributor bio

Dr Craig Liebenson is a pain patient advocate who spent his career on an unglamorous truth: most people don't get better by being managed, but by getting stronger and more capable. He is the founder of L.A. Sports & Spine and First Principles of Movement, an education platform working to promote healthspan in the face of a global inactivity crisis. He was the first healthcare provider in California to receive the NCQA's Certification of Recognition for quality back-pain care and is the author/editor of four books, plus the forthcoming Sustainable Athleticism and Healthy Longevity: Making Your Healthspan Last Your Lifespan.

Sources

Muscle mass and mortality: a 20-percentile increase in skeletal muscle index was associated with an ~18% lower risk of all-cause mortality in a nationally representative U.S. sample (Scientific Reports, 2025); a comparable top-vs-bottom quartile mortality reduction was reported in The American Journal of Medicine (2014).
Peak bone mass and decline: bone mass peaks in the late 20s to early 30s and declines gradually thereafter, with an accelerated loss around menopause (consensus across bone-health and endocrinology literature).
Resistance training and bone: progressive resistance training is among the few interventions shown to stimulate bone formation, including after menopause; effect depends on sufficient mechanical load (working close to task failure) rather than light, sub-threshold activity.