By Nsikan Akpan | May 24, 2013 06:34 PM EDT
Researchers found 4-fold increase of andropause symptoms, a.k.a. "male menopause", in subjects with heart disease.
By Ashik Siddique | May 14, 2013 08:46 PM EDT
Testosterone levels increase when men defeat rivals in competitions, but not after competing against male friends. Lower testosterone reactivity helps maintain bromances, a study suggests.
By Christine Hsu | Jan 09, 2013 10:22 AM EST
A new study found a link between a person's ring finger and index finger ratio to their verbal aggressiveness.
By Amber Moore | Nov 20, 2012 10:48 AM EST
Using testosterone along with Viagra doesn't increase chances of erection in men who have been diagnosed with erectile dysfunction.
By Christine Hsu | Oct 10, 2012 07:26 PM EDT
Testosterone, the male sex hormone previously linked to aggression and criminality, may actually foster pro-social behaviors by increasing honesty in men.
By Christine Hsu | Sep 26, 2012 04:57 PM EDT
A new mother is scarred for life after developing an allergic reaction to her son.
By Christine Hsu | Sep 24, 2012 01:19 PM EDT
Castration may add up to two decades to a man's life, according to a new study that found that eunuchs living in Korea centuries ago lived significantly longer than other men.
By Amber Moore | Sep 06, 2012 03:46 PM EDT
Fathers who share a bed with their children tend to have some hormonal changes occur. The popular notion is that only mothers are biologically attuned to their child's needs but new research says that a man's body too changes during parenting.