Medically reviewed by Kelly Wood, MD 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 ...

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 ...

Higher testosterone levels are linked to higher muscle mass and, above all, to less intramuscular fat. This is especially true in muscles with a high percentage of fat: around the stomach, waist, ...

Muscle health and testosterone are also connected. Higher testosterone levels are linked to higher muscle mass and, above all, to less intramuscular fat. This is especially true in muscles with a high ...

For many guys, having low energy isn’t simply a result of a rough night of sleep or a demanding workweek—it might be low testosterone levels at play. Testosterone is an androgen (or male hormone) that ...