A viral Twitter post from April 9 claims testosterone levels have dropped by almost 50% over the past 20 years. "Here's a cheery Friday fact," reads the post. "An average 22 year-old (sic) male today ...

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Testosterone is arguably one of the most essential hormones for supporting men’s health. It plays a role in supporting intimate, bone, muscle, and mental health. Testosterone levels that are higher or ...

Starting around age 40, many men notice the first physical changes that may be related to their hormone levels: Energy wanes more quickly, sleep is less restful, and waistlines often expand. These are ...

WHAT’S CONSIDERED NORMAL when it comes to testosterone levels is relative. Normal varies from person to person, and doctors say your actual number may not be as important as you might think. How you ...

As a health issue, testosterone therapy can be confusing. On one extreme, there are testosterone clinics that promise to take you back decades to age 25 again with renewed strength, vigor, and sexual ...