The Testosterone Replacement Therapy (TRT) program discusses a problem that for years had been considered a natural and inevitable part of the aging process for men. But today, men don't have to feel ashamed and hide their private suffering. TRT can not only bring vitality and passion back to life for the millions suffering from it, but as research is beginning to support, treating low testosterone levels may actually have a positive benefit on other serious medical conditions like diabetes and heart disease.