There may be a game changer on the horizon for women with endometriosis. Affecting 10 percent of women of reproductive age, endometriosis is a painful condition in which endometrial-like tissue grows ...

Total testosterone measures the full amount of the hormone in your blood, while free testosterone represents the small, active portion your body can actually use to support muscle growth, energy, mood ...

If you’re a middle-aged man with his eyes open, you’ve likely seen ads featuring a chiseled 52-year-old dodging his own mortality. The captions usually ask something relatable, like "Feeling tired?

Masturbation and ejaculation may cause short-term testosterone changes, but research has not shown any long-term drop in testosterone levels. Testosterone rises during masturbation and sex, then ...

Proper development of the fetal penis requires not just testosterone from the testes, but a second hormone produced by other tissues, including the placenta, according to a new study. The results ...

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Testosterone, the primary sex hormone in men, plays a vital role in male reproductive development and function, as well as other functions like bone density and muscle mass. Testosterone levels ...

New York Post may receive revenue from affiliate and advertising partnerships for sharing this content and/or when you make a purchase. Accessing Testosterone Replacement Therapy shouldn’t make you ...

Correspondence to Professor Angelica Lindén Hirschberg, Department of Women’s and Children’s Health, Karolinska Institutet, Stockholm 171 77, Sweden; angelica.linden-hirschberg{at}sll.se Objective To ...