"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Many factors can affect your testosterone levels, especially age and weight, Dr. Lynam says. When your ...

Please provide your email address to receive an email when new articles are posted on . Associations between sleep duration and serum testosterone vary by age and sex. Sleep quality was not associated ...

Please provide your email address to receive an email when new articles are posted on . Older men with worse sleep quality and irregular sleep duration have a higher frailty index score. Mean total ...

A new study in the journal PLOS ONE asks whether fathers who sleep in the same place as their children have lower testosterone—and finds a significant link. The study follows another by the same group ...

“Does sleep loss cause low testosterone?” I hear it asked by firefighters at almost every sleep deprivation training class I teach. Don’t hate the messenger, but the answer is yes. In this article, we ...

Certain healthy foods and supplements may negatively impact testosterone levels when consumed in excess, according to experts who study hormone health.