You Can Spot More Aggressive Men By Their Faces

According to Canadian scientists, men with wider faces are more aggressive. Men have wider faces than women, and the differences start emerge at puberty when testosterone levels increases. Testosterone is tied with aggression, which led to a link between aggression and wide faces. But the face width is not linked with aggression in women. The size of the faces have been shaped by evolution to signal aggressiveness to others.

Gender Affects Kidney Transplant

According to a analysis of the “Collaborative Transplant Study”, female donor kidneys do not function as well in men, because to their smaller size. Women are at higher risk of rejecting a male donor kidney. Therefore, gender will be considered more in the allocation of donor kidneys in future. Data collected from almost 200,000  kidney recipients from 1985 to 2004 analyzed, and transplanting a female kidney was less successful than a male kidney. This is because of female kidneys have fewer nephrons. Immunological rejection problems occurred most frequently when women received a male kidney as well.

Photo Source: http://galileo.phys.virginia.edu