Women's Health Truth Month · Week 1
The Research
Was Never
Written About You.
The truth about women's bodies, strength, and why the "rules" of exercise never quite fit — backed by the science that's finally starting to pay attention.
Every piece of fitness advice you've ever been handed: how many reps, how much rest, how much protein, how hard to push, when to back off. Here's a question worth sitting with. Who was it actually written for?
Because the honest answer, for a long time, is that it wasn't written for you.
October is Women's Health Truth Month here at Refinery Strength Collective. All month I'm going to be telling the truth about women's bodies, hormones, and midlife, backed by research, not trends. And I want to start at the very bottom of the stack. Before we talk about perimenopause, before we talk about autoimmune flares or bone density or any of it, we need to talk about why so many women feel like the rules of exercise never quite fit their bodies. Spoiler: it's not because something is wrong with you.
The problemWomen Have Been Missing From the Research
In 2021, researchers including Dr. Alyssa Olenick went through six years of studies published in major sport and exercise science journals and counted who was actually being studied.
Read that again. Six percent of studies focused on women only. Thirty-one percent focused on men only. So when someone tells you "the research says," it's fair to ask: which research, and whose body? A lot of what we "know" about training, recovery, and fatigue was learned on men in their twenties and then handed to women with a pink label slapped on it.
And if you're a woman in midlife or beyond? The same research group published a call to action in the British Journal of Sports Medicine in 2024 pointing out that women in their forties, fifties, and beyond are even harder to find in the data. The women with the most to gain from strength training are the ones science has paid the least attention to.
Dr. Stacy Sims has been saying it for years: women are not small men. I'd add, women at 45 are not women at 25 either. Your physiology deserves its own conversation.
The good newsWhat the Research We Do Have Actually Says
Here's where it gets encouraging. The studies that have included women are telling us things that should change the way every woman approaches training. These are not small findings.
A systematic review and meta-analysis compared men and women following the same strength training programs. Muscle growth was essentially the same between sexes relative to baseline. Lower-body strength gains were similar. For upper-body strength, women actually showed larger relative gains than men.
You are not "bad at building muscle." You were probably just never given a program built to actually help you do it. The capacity has always been there.
A well-established review of sex differences in fatigue found that women are usually less fatigable than men during sustained, similar-intensity muscle contractions. That difference depends on the type of task, but it's real and consistent, and it matters for how programs should be structured.
It's one reason a program written for a 25-year-old man, long rests, a handful of grinding sets, then done, might not be the best fit for you. Your body recovers differently and can often sustain more volume than a male-default program gives you credit for.
Estrogen plays an active role in protecting bone density and supporting muscle tissue. That's not a reason to panic. It's a reason to plan. Your body across your thirties, forties, fifties, and beyond is going to shift, and how you train can shift with it. The women who understand this get ahead of it instead of being caught off guard by it.
That's exactly where we're going next week: perimenopause, what's actually happening, and what the research says you can do about it.
The mythsAdvice That Looks Different Once You Know This
Once you know the research was built mostly on men, a lot of the advice women have been handed starts to make more sense, and look a lot more questionable at the same time.
Use light weights so you don't get bulky.
Women build muscle at a similar relative rate to men, and that is a good thing. Muscle is what keeps your bones strong, your metabolism working, and your body able to catch itself if you trip. Building meaningful muscle takes years of consistent, progressive work. You are not going to accidentally wake up bulky. And even if looking more muscular were your goal, it would take real dedicated effort to get there. The light-weight advice is not protecting you from anything. It's just leaving results on the table.
Just do more cardio.
Cardio matters, and I love a good walk. But cardio and strength training are not in competition, and only one of them is going to load your bones, build the muscle you need to get off the floor without using your hands at 80, and slow the metabolic changes that happen as estrogen declines. Do both. But don't treat cardio as a substitute for lifting.
No pain, no gain. Push through it.
Your body gives you information. Soreness, energy levels, sleep quality, how your joints feel on a given day: that's data, not weakness. Learning to read that data and adjust your training accordingly is not backing down. It's training smart. Women who learn to listen to their bodies get further over time than women who white-knuckle through signals their body is sending for a reason.
Start hereWhat This Actually Means for You
You don't need a whole new life to start training in a way that fits your body. Here's where I start with every woman who walks into my classes.
You were never the problem. The research just hadn't caught up to you yet. Now you get to train like the woman you actually are, with a program built for your body, in your season of life, with evidence behind it.
Next week we're going straight into perimenopause: what's actually happening in your body, what the research says you can do about it, and why this season might be one of the best times in your life to get serious about strength. Stick around.
You got this. Drink your water, eat your protein, get your steps in.
See y'all,
Amy, Refinery Strength Collective
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