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

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 ...

Sometimes, the body doesn’t produce enough testosterone, a condition known as hypogonadism. You're considered to have a testosterone deficiency or low testosterone (also known as low-T) when your ...

We include products we think are useful for our readers. If you buy through links on this page, we may earn a small commission. Here’s our process. An at-home testosterone test can help people monitor ...

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

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 ...

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 ...

Genetics play a role in low testosterone for some men, but underlying causes vary widely. Many genes influence testosterone ...

BEING IN A LOVING, committed relationship is good for your health. It can lower stress, give you a sense of purpose, and even strengthen your immune system and help you live longer. There also may be ...