This article was reviewed by Felix Gussone, MD. If you’ve been feeling a bit more couch potato than go-getter lately, dragging through the day, snapping at people for no reason, or wondering where ...

There are no official numbers for the optimal levels of testosterone. However, certain medical laboratories use the following reference values for typical total serum testosterone, measured in ...

Testosterone levels peak for males during puberty and decline with age in all genders. With low testosterone in males, you can have a decreased sex drive, trouble with erections, and low sperm count.

Harmonized reference normal ranges for testosterone levels in healthy, nonobese men have been generated in a landmark study that should aid in accurately diagnosing hypogonadism, say US investigators.

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 ...

Testosterone tests measure levels of testosterone in the blood. At-home test kits can be convenient, but they cannot diagnose underlying health conditions that cause high or low testosterone. Share on ...

The definition of male hypogonadism varies, with different experts/societies/labs having different reference ranges for total testosterone. Generally, most experts would agree that a total ...

Rob, 42, is a fitness guy. He loves working out, spends his spare time in the jujitsu gym and eats a high-protein diet heavy on avocado oil. He cares about his health and wants to optimize it, and a ...