As a urologist specializing in men’s sexual health, I am asked all kinds of questions about testosterone levels—who needs to have them checked, when to check, and how often—including questions about ...

Whenever one experiences growth hormones, peptide hormones, thyroid hormones, stress hormones or sex hormones, the body's chemical messengers play a key role in many essential bodily functions and ...

Testosterone is a sex hormone that regulates a number of processes in the human body, including fertility, sex drive, bone mass, fat distribution, muscle mass, and red blood cell production.

Testosterone is the primary androgen (male hormone). While it can help you grow a beard, build muscle mass, and develop a intimacy prowess, testosterone doesn’t skyrocket during puberty and then exist ...

Young adult male sitting on a bed with both hands holding his head seemingly having a headache. As men get older, declining testosterone levels are as inevitable as death and taxes. Around the age of ...

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 ...

Men who are tipping the scales might want to get their testosterone levels checked, according to a new study showing obese mean are more likely than others to have low levels of this sex hormone.

While the science isn’t yet clear, you could join the research that’s working to understand how nicotine affects testosterone levels. Nicotine is a highly habit-forming substance, one that can be in ...

Daniel Kelly does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their ...

"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 ...