Testosterone therapy is on the rise as men seek more energy and vitality, revealing shifting views on aging and modern masculinity.

Sara Moniuszko is a health and lifestyle reporter at CBSNews.com. Previously, she wrote for USA Today, where she was selected to help launch the newspaper's wellness vertical. She now covers breaking ...

Genetics play a role in low testosterone for some men, but underlying causes vary widely. Many genes influence testosterone ...

NEW YORK (Reuters Health) - Men with testosterone levels in the low-normal range are much more likely to have diabetes than those with higher levels, whether or not they are obese, researchers report ...

This transcript was prepared by a transcription service. This version may not be in its final form and may be updated. Ryan Knutson: Like a lot of men, my colleague Rolfe Winkler and I get bombarded ...