Articles by Dr Stacy Sims

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Tags: intensity

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Strength vs Muscle Size: What Women Need to Know

One of the questions I’m often asked is: How connected are building muscle and building strength? The short answer: they’re related, but not the same. You can increase strength without dramatically increasing muscle, and you can increase muscle without seeing proportional gains in strength. Res...

by Dr. Stacy Sims — Jan 28, 2026 hormones intensity lhs lift heavy muscle strength training

Talking Menopause with Mel Robbins

My latest conversation with Mel Robbins drops today, and it touches on many of the questions I’ve been thinking about as we head into 2026: how women can support metabolism, build muscle, and work with their hormones as they train, recover, and age in a landscape that’s often noisy, trend-drive...

by Dr. Stacy Sims — Jan 15, 2026 hiit hormones intensity longevity menopause menstrual cycle strength tracking

HIIT for the Holidays: Why Short Bursts of Intensity Are a Gift to Your Brain

The holiday season can be a mixed bag: joyful, busy, fun, overwhelming, energizing, and exhausting—often all on the same day. If you’re an active woman trying to stay consistent with exercise while also juggling family, travel, social commitments, and extra mental load, you’re not alone. And yo...

by Dr. Stacy Sims — Nov 17, 2025 anxious hiit intensity recovery training

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

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

Resistance Training Is Finally Getting the Respect It Deserves for Health and Longevity

Lifting weights is now recognized as good for more than “just” making muscle. For decades, aerobic exercise was regarded as the primary form of exercise you should do for cardiovascular and other health benefits. Heck, that’s why endurance type exercise such as walking, biking, and running are c...

by Dr Stacy Sims — Oct 14, 2024 intensity lea muscle training

What Women Need to Prioritize Instead of Zone 2

The popular zone 2 protocol doesn’t work the same way for women. Here’s what to do instead. I have previously reviewed, down to the cellular level, why zone 2 training, which is currently being promoted across the internet as the priority training for health, longevity, and performance, isn’t as...

by Dr Stacy SIms — Oct 14, 2024 intensity lhs training zone

Holiday Stress Cranking Up Your Anxiety? Turn Up the Intensity!

A study finds higher intensity exercise helps relieve anxiety. I am a huge proponent of high-intensity exercise, especially short, sharp high-intensity training like sprint intervals of 30 seconds or less because it's like powerful medicine. Sprint interval training (SIT) fires up your fast-twit...

by Dr Stacy Sims — Oct 11, 2024 anxious intensity

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Tags: intensity

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