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Testosterone dose direct to liver could end wasting disease

New Australian research suggests that a small dose of testosterone directed solely to the liver stimulates protein synthesis, likely preventing muscle loss and wasting,...

Extra testosterone reduces your empathy

A new study from Utrecht and Cambridge Universities has for the first time found that an administration of testosterone under the tongue in volunteers negatively affects a person's ability to 'mind read', an indication of empathy. The findings are ...

New ground broken on aggression research

Questionnaire results and DNA samples volunteered by a group of University of Alberta students has broken new ground in the study of aggression. U of A Psychology researcher Peter Hurd was looking at the link between an individual's sensitivity to t...

Beneficial effects of testosterone for frailty in older men are short-lived

Chevy Chase, MD -- The beneficial effects of six months of testosterone treatment on muscle mass, strength and quality of life in frail elderly men are not maintained at six months post-treatment, according to a study accepted for publication in The...

Frequent inaccuracies in testosterone testing lead to call for standardization

Chevy Chase, MD -- The use of testosterone assays for patient care and research is on the rise as new research links testosterone to a variety of diseases and conditions. Although the assays are heavily used, discrepancies and inaccuracies in measu...

Low testosterone linked to Alzheimer’s disease

ST. LOUIS -- Low levels of the male sex hormone, testosterone, in older men is associated with the onset of Alzheimer's disease, according to research by a team that includes a Saint Louis University scientist. "Having low testosterone may ma...

Having a male co-twin improves mental rotation performance in females

Having a sibling, especially a twin, impacts your life. Your twin may be your best friend or your biggest rival, but throughout life you influence each other. However, a recent study published in Psychological Science, a journal of the Association f...

Testosterone Levels and Marriage: High is Not All Bad

A low-testosterone man newly married to a high-testosterone woman might seem destined to be henpecked but a Penn State study found that such a coupling actually produced a marriage where the wife provided better social support for her mate. Dr. Catherine Cohan, assistant professor of human development and family studies, says, "It's not necessarily the case that higher testosterone is all bad. Testosterone is related to assertiveness which can be good or bad depending on whether it is manifested as either aggression or being helping and outgoing."

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