Modern life is waging a quiet war on male hormones; discover the overlooked environmental and lifestyle triggers that a top urologist says are fueling today's testosterone crisis.

The testicles and ovaries produce testosterone. Producing too little or too much testosterone can affect your physical and mental health. Testosterone is a hormone found in humans, as well as in other ...

Low testosterone levels in males can lead to erectile dysfunction. They can also affect sleep, mood, the size of the testicles, and more. In both males and females, low testosterone can lead to lower ...

Low testosterone may affect sexual desire and erection ability, with significant effects typically occurring at very low testosterone levels. High testosterone usually doesn’t cause erectile ...

Testosterone is the primary sex hormone in males but also has important functions in females. Natural testosterone supplements and boosters include vitamin D, fenugreek, or ashwagandha. A person with ...

Welcome to Testosterone HQ—Men's Health's guide to the exciting, complicated, and revolutionary world of testosterone. For everything you need to know about T, click here. TESTOSTERONE IS RESPONSIBLE ...

Testosterone is a male sex hormone that is important for sexual and reproductive development. The National Institutes of Health regards testosterone as the most important male hormone. Women also ...