TRT—Masculine Cure-All for Aging Men, Or Another Health Fad?

Social media is awash in testimonials from anonymous men who claim that testosterone-replacement therapy (TRT) helped them beat depression, sexual dysfunction, obesity and other maladies that often impact men as they age. Such compelling endorsements no doubt appeal to others who struggle with these critical health issues, but do they stand up to scientific scrutiny? Let's take a closer look.