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What to Do Differently in Peri & Postmenopause
  Perimenopause vs. Postmenopause: What Active Women Need to Know With World Menopause Day happening tomorrow, it feels like the right time to address some key questions I’m often asked about perimenopause and postmenopause. I know only too well that navigating these changes can feel confusing,...
by Dr. Stacy Sims — Oct 17, 2025 hiit hormones intensity menopause perimenopause training
The Evolution of Menstrual Cycle Training
  Why We’ve Moved on from “Train by Your Phase.” For years, the conversation about women’s training centered on the menstrual cycle: do high-intensity work in the follicular phase, focus on endurance in the luteal phase, and rest during your period. (And for transparency here, I was one of the ...
by Dr. Stacy Sims — Oct 14, 2025 hormones menstrual menstrual cycle period tracking training
What Racing Kona Taught Me
  Racing Kona Taught Me More Than I Ever Expected In October 2000, I stood on the start line of the Ironman World Championship in Kailua-Kona, Hawaii. I had no idea that day would shape the rest of my career—not just as an athlete, but as a scientist. Kona is brutal. It’s long, hot, humid, wind...
by Dr. Stacy Sims — Oct 06, 2025 fueling heat hydration nutrition training
Train for Power—Not Just Strength
  Most active women love to move. Whether it’s running, riding, swimming, lifting, yoga, or simply chasing your kids around, we love to break a sweat and feel the physical and mental benefits that come from that. But there’s one form of training that too often gets overlooked: power training. W...
by Dr. Stacy Sims — Sep 19, 2025 fueling lhs lift heavy longevity strength
Training Girls Through Puberty
  If you’ve followed me for a while, you know I’m all about helping women work with their physiology, not against it. And while I’ve covered this extensively for women aged ~25+, an area of emerging interest for me—especially with a teenage daughter—has been learning and researching more about ...
by Dr. Stacy Sims — Sep 03, 2025 coaching fueling hormones lea menstrual cycle period sit
Why HIIT Matters for Women’s Body and Brain Health
  If you’ve been following me for a while, you know I love busting myths—especially in women’s training. One of the most persistent? “More long, steady cardio is always better.” Don’t get me wrong—Zone 2 training has its place. It builds your aerobic base, supports mitochondrial health, and imp...
by Dr. Stacy Sims — Aug 20, 2025 cortisol creatine hiit intensity longevity recipes supplements
Longevity Advice Women Actually Need
  If you’re tuned into the health and fitness world (which I’m assuming you are if you’re here!) then I’m sure you’ve heard plenty of influencers and experts talking about “longevity” and the importance of living better for longer. Yet as with so many things, I’m acutely aware that much of the ...
by Dr. Stacy Sims — Aug 06, 2025 cold collagen hydration lift heavy longevity supplements
Recipe: Overnight Protein Oats
The perfect breakfast for busy mornings on-the-go! “Six ingredients, many great variations, and theperfect make-ahead high-protein breakfast for yourbusy mornings on-the-go!” -SS
by Dr. Stacy Sims — Aug 05, 2025 protein recipes
Why Women Struggle with Sleep—Especially in the Summer
  If you’re finding it harder to sleep, especially with the summer heat, you’re not alone. Women face unique sleep challenges—largely due to hormone fluctuations, different circadian rhythms, and even how we respond to temperature. But with the right strategies, you can improve your sleep, feel...
by Dr. Stacy Sims — Jul 23, 2025 adaptogens carbohydrate circadian rhythms heat hydration sleep
Why Heat Impacts Women Differently
With heat waves sweeping across parts of the U.S. and Europe, summer training just got a lot more intense. As an active woman, you might already feel the difference—more fatigue, maybe some gut issues, and a general sense that your usual hydration or fueling strategy just isn’t cutting it. You’...
by Dr. Stacy Sims — Jul 10, 2025 heat hydration recipes training
Recipe: High-Protein Mac & Cheese
A high-protein twist on a classic. " Creamy and satisfying, one the kids will love!" —SS  
by Dr. Stacy Sims — Jun 30, 2025 recipes
Why Fasting Doesn’t Work for Active Women
  Of all the topics I cover, fasting is easily one of the most polarizing. But it’s also one I feel strongly about—because the science is clear, and I want to help women avoid its many pitfalls. While some women do say they feel good when fasting, the long-term research tells a different story....
by Dr. Stacy Sims — Jun 25, 2025 carbohydrate cortisol hormones intermittent fasting

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