Testosterone is the primary male sex hormone. It plays a key role in male sexual development, muscle growth, bone mass, body hair, libido, and many other functions. If your total testosterone level drops too low, it could contribute to decreased sex drive, increased fatigue, weight gain, and mood changes.
Testosterone is the primary male sex hormone. It plays a key role in male sexual development, muscle growth, bone mass, body hair, libido, and many other functions. If your total testosterone level drops too low, it could contribute to decreased sex drive, increased fatigue, weight gain, and mood changes.