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

DEAR DOCTOR K: I’ve been having symptoms that may be caused by low testosterone. I figured it would be easy to test my testosterone levels, but my doctor says it’s complicated. Why? DEAR READER: ...

Dear Dr. K: I”ve been having symptoms that may be caused by low testosterone. I figured it would be easy to test my testosterone levels, but my doctor says it”s complicated. Why? Dear Reader: ...

The first peak occurs in the morning, and the second peak (not as high as the morning) occurs in the afternoon, with your testosterone level gradually dropping by the end of the day. Lab companies ...

Starting around age 40, many men notice the first physical changes that may be related to their hormone levels: Energy wanes ...

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 ...

Dr. Jamin Brahmbhatt is a urologist and robotic surgeon with Orlando Health and an assistant professor at the University of Central Florida’s College of Medicine. You’re feeling unusually tired and ...