Testosterone levels peak during male puberty and decline with age in both males and females. With low testosterone in males, you can have a decreased sex drive, trouble with erections, and low sperm ...

Testosterone replacement therapy can increase your sex drive and boost your mood and energy levels. Cooking with less dietary fat may help increase your testosterone levels naturally. Low-quality ...

Skip to the facts on your irregular heartbeat. Find out what happens to your heart and if it’s serious. 67 Your heart is wired to beat up to 100,000 times a day.