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

Add Yahoo as a preferred source to see more of our stories on Google. Reeder explains that testosterone is far more involved than you would first think -- it plays are part in everything from muscle ...

Taylor Leamey wrote about all things wellness for CNET, specializing in mental health, sleep and nutrition coverage. She has invested hundreds of hours into studying and researching sleep and holds a ...