When Grayson Smith, a 23-year-old woman from Texas, started feeling sluggish and tired in the afternoons, she said a blood test she had low testosterone, a sex hormone traditionally associated with ...

You would think that testosterone deficiency would be the last thing a burly, robust 38-year-old man would have to worry about, but after 10 years of working the overnight shift, usually seven days ...

NEW YORK (Reuters Health) - Testosterone cream does not appear to boost the sex drives of women cancer survivors suffering from low libido, a new study shows. Sign up here. "The idea is that libido is ...