Total testosterone measures the full amount of the hormone in your blood, while free testosterone represents the small, ...

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 ...

Starting around age 40, many men notice the first physical changes that may be related to their hormone levels: Energy wanes ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Welcome to Testosterone HQ—Men's Health's guide to the exciting, complicated, and revolutionary world of ...

Advertisements for treatments for “low T,” or low testosterone levels in middle-aged and older men, have led to spikes in demand. But the safety and legitimacy of those testosterone therapies hasn’t ...

Testosterone therapy is on the rise as men seek more energy and vitality, revealing shifting views on aging and modern ...

DEAR MAYO CLINIC: I'm a 56-year-old man without any health problems. Recently, I've noticed I don't have the energy for physical activities that I used to. Working in the yard, riding my bike and even ...

Medically reviewed by Danielle Weiss, MD PCOS is the most common cause of high testosterone in women, affecting about 10% ...

With the prevalent use of opioids in the treatment of acute and chronic pain, the effect on the hypothalamus is often overlooked. Fatigue, low libido and decline in mental function are frequently ...