Testosterone is the sex hormone that is responsible for a range of important functions, from hair growth and bone density to sperm count and libido levels. Low testosterone affects millions of men, ...

Low testosterone can cause fatigue, low libido, mood changes, muscle loss, and bone weakness.

In practice, Will’s increased T levels have seen his performance in the gym improve massively. Over 28 days he added 10kg to ...

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 ...

Angela Myers is a freelance writer covering mental health, wellness and nutrition. She’s also conducted award-winning research on how to better communicate about sexual violence prevention and mental ...

THERE IT WAS: a bulbous droplet of blood suspended from the tip of my left-hand middle finger, which was dangled over the lip of a microtainer. It was this droplet of blood, plus another 11 after it, ...

Testosterone levels typically decline as a person ages, but some may have low testosterone due to certain health conditions. People may wish to use an at-home testosterone test to monitor their ...