Articles by Dr Stacy Sims

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Tags: intermittent fasting

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How Well Will You Age?

You might have noticed there’s a word you can't escape right now: longevity. Everywhere you turn there seems to be supplements, podcasts, and biohacking protocols all promising to help you live longer. But longer isn’t the same as better. And here's the thing nobody's telling you: women already...

by Dr. Stacy Sims — Jun 12, 2026 circadian rhythms hormones intermittent fasting longevity menopause perimenopause

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

Yes! You are an athlete. No! You shouldn’t practice Intermittent Fasting.

I sat down with 8x U.S. Champion Steeplechase runner and Olympic bronze medalist Emma Coburn for Episode 5 of Nuuness TV, a Nuun-sponsored YouTube series devoted to women in sports. It didn’t take long before the topic turned to my scientific impressions of current diet trends. Of course, I jump...

by Dr Stacy Sims — Oct 10, 2024 intermittent fasting keto

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