PremiumGretchen ReynoldsWashington Post·17 Jul, 2026 10:00 PM6 mins to readThe study suggests female sex hormones play little role in muscle building. The same could apply to male hormones. Photo / 123rfA study has upended common beliefs, with implications for women and men of all ages.Female hormone levels change enormously during the monthly cycle.But those changes have almost no effect on how well women’s muscles respond to weight training, a new study finds.
Scientists used rigorous methods to track
