Once testosterone is released throughout the body, it binds naturally to muscle cells, causing those cells to produce more protein.
Testosterone affects energy, mood, and confidence. Although testosterone can cause behavior, it can also rise after specific activities.
Testosterone increases bone density by stimulating bone marrow to create more red blood cells. Low testosterone can cause brittle, weak bones.
Sexual activity and testosterone have a reciprocal relationship, with testosterone influencing sexual performance but also influencing testosterone levels.
Testosterone causes hair to grow on the face, underarms, and genitals in puberty-age guys. As men age, their testosterone levels drop, causing head and body hair loss.
Testosterone affects metabolism, and a good testosterone balance prevents the body from burning excessive or insufficient fat.
Higher testosterone levels induce more red blood cells. 60 60-year-old men were given testosterone or placebos and their iron metabolism and red blood cell counts were compared.
The level of testosterone in the body determines how receptive the skin will be. Acne breakouts have been linked to elevated levels of testosterone.
High and low testosterone levels might affect sleep quality and duration. Regular, undisturbed sleep keeps testosterone levels healthy.