5.9K views · 44 reactions | Testosterone is a key male hormone that is responsible for characteristics like hair growth, muscle mass and deepening of the voice. As men age, testosterone levels gradually decline, particularly over 40. If left unchecked, this treatable condition may contribute to serious health problems like osteoporosis and lowered red blood cell production. Learn more: https://mayocl.in/3XjqSPZ | Mayo Clinic | Facebook

Testosterone is often the hormone that causes the most confusion for men. So much of a man's physical characteristics are affected by testosterone levels. Dr. Landon Trost, a urologist, says a drop in testosterone level can cause a long list of side effects. https://mayocl.in/2K8G8ud | Mayo Clinic