Women's Health and Fitness Across the Lifespan

Jul 23, 2024

Key Points from Huberman Lab Podcast with Dr. Stacy Sims

Introduction

  • Host: Andrew Huberman, Professor of Neurobiology and Ophthalmology at Stanford School of Medicine.
  • Guest: Dr. Stacy Sims, Exercise Physiologist and Nutrition Scientist specializing in women's training and nutrition.
  • Main Focus: How hormones and hormone cycles impact nutrition and fitness needs specifically for women.
  • Topics Covered: Menstrual cycle, perimenopause, menopause, fasting, training protocols, nutrition, and more.

Major Discussion Topics

Hormones and Nutrition/Fitness Needs

  • Importance of understanding the impact of hormonal changes at different stages of life (e.g., menstrual cycle, perimenopause, menopause).
  • Women should avoid training fasted; it increases stress and cortisol levels, which is counterproductive.
  • Pre-workout nutrition is crucial for women to avoid hormonal imbalances and maintain energy levels during training.
  • Suggested pre-workout nutrition: 15 grams of protein for strength training, 30 grams of carbs plus protein for cardio.

Intermittent Fasting and Time-Restricted Eating

  • Intermittent fasting (e.g., 20-hour fasts) is generally detrimental for active women unless they have specific conditions like PCOS.
  • Time-restricted eating (not eating until noon) may not be suitable for women due to its impact on cortisol levels and metabolic flexibility.
  • Women thrive better on a diet that aligns with their circadian rhythm, eating earlier in the day.

Training Throughout the Menstrual Cycle

  • Lower hormone phase (day 1 of bleeding up to ovulation): best time for high-intensity and heavy training due to better stress accommodation.
  • High hormone phase (after ovulation): more caution needed; higher risk of injury and altered recovery.
  • Individual tracking and understanding personal cycle patterns are crucial for optimal training adaptation.

Specific Training Recommendations by Age

  • 20-30 Years: Focus on learning complex movements, resistance training 3-4 times/week, incorporate high-intensity intervals (true HIIT, Sprint Interval Training), and maintain fun in workouts.
  • 30-40 Years: Incorporate heavier lifting, ensure periodization of training blocks, add sprint intervals or high-intensity sessions, and monitor signs of overtraining and stress.
  • 40-50 Years: Focus on heavy lifting to combat middle age muscle and strength decline, step up intensity, take preventative measures against injuries, and balance with recovery work.
  • 50+ Years: Emphasize bone density with jump training, heavy resistance, sprint intervals; ensure higher protein intake to combat anabolic resistance.

Recommendations for Special Populations

  • Menopause: Externally stress the body (heavy lifting, HIIT) to offset muscle and bone density loss; consider hormone therapy if appropriate.
  • Pregnancy: Stay active to maintain fitness levels through pregnancy; the body will naturally guide intensity. Avoid high-stress cold exposure.

Supplements

  • Creatine: Important for brain health, mood, and gut health. Recommended dosage is 3-5 grams per day (preferably CreaPure for lower gastric distress).
  • Vitamin D3: Essential for bone health, mood, and overall well-being. Dosage ranges from 2,000 IU to 5,000 IU based on geographical location and sun exposure.
  • Protein Powder: To ensure adequate protein intake, particularly if dietary protein is insufficient.
  • Adaptogens: For stress management, e.g., Schisandra for focus and energy, Ashwagandha and Holy Basil for cortisol regulation, and mushroom supplements like Lion’s Mane and Reishi.
  • Iron: Supplementation is important especially around menstrual cycles to prevent low ferritin levels.

Deliberate Cold and Heat Exposure

  • Cold Exposure: Beneficial but should be moderate (55-60°F water). Extreme cold can be counterproductive for women especially post-high-intensity workouts.
  • Heat Exposure: More universally beneficial for women. Post-training sauna (20-30 mins) helps with metabolic and cardiovascular health, can boost red blood cell count, and helps with temperature regulation benefits for menopausal women.

General Tips

  • Recovery and Training Adaptation: Prioritize recovery and understand individual cycle to maximize training effectiveness and maintain hormonal balance.
  • Nutrition: Align food intake with training needs, ensure adequate protein and carbohydrate intake to support training and recovery. Be mindful of the type and timing of food relative to workouts.

Conclusion

  • Dr. Stacy Sims provides tailored insights into training and nutrition specifically for women, stressing the importance of understanding hormonal effects, proper nutrition timing, varied training, and adding recovery strategies.
  • Recommendations include focusing on heavy lifting as women age, adequate protein intake, and individualized tracking of menstrual cycles to optimize fitness and health outcomes.
  • Supplements are valuable but should be strategically chosen and possibly cycled based on individual needs.