Dr. Mehmet Oz apparently claimed that the president has “the highest testosterone level” of anyone over 70 years old that he has ever seen.

Total testosterone measures the full amount of the hormone in your blood, while free testosterone represents the small, active portion your body can actually

New U.S. dietary guidelines for the first time include advice for men on maintaining healthy testosterone levels.

IN A NEW Men's Health cover story, country-rap star Jelly Roll opens up about how he lost 275 pounds and completely transformed his body. He revealed that before embarking on his epic fitness quest, he had a testosterone level of a preteen boy, which had a significant impact on his sex life.