Why Men Experience Low Libido and What to Do About It

Low Testosterone

Testosterone is an important male hormone. In men, it’s mostly produced in the testicles. Testosterone is responsible for building muscles and bone mass and stimulating sperm production. Your testosterone levels also factor into your sex drive. You’re considered to have low testosterone, or low T, when your levels fall below 300 to 350 nanograms per deciliter (ng/dL).