Aging athletes might feel like they "need" to replace testosterone as natural levels decline, but experts say that's not the case. Learn about why testosterone (probably) isn't the culprit behind athletic performance declines and what to do about it instead.
Your body runs on hormones - learn how to feed them right with this men's guide to eating for hormone health.
What you eat and how much you eat relative to your training can make a big impact on hormone health for women in endurance sports.
Approximately half of athletes who menstruate are using a hormonal contraceptive. How does using hormonal birth control affect athletic performance? We asked the experts to break down what we know - and don't know - about hormonal contraceptives for endurance athletes.