Why are men always so focused on sex, sex and sex

Chalk this one up to testosterone, the “male” hormone that advises the brain, too. “In utero, the male fetal brain ‘marinates’ in testosterone, which makes his brain’s area for sexual pursuit grow to be two and a half times larger than in a female brain,” Expert says.

And then, the ‘fuel’ that drives this area in the brain — testosterone — increases in a male by 250 percent between ages 9 and 15. So by the time he’s a teenager, a male’s visual circuits — all of which are located in his brain — start focusing on female body parts and fantasizing about how to get a girl to have sex with him, and, you may have noticed, this act of “focusing” doesn’t exactly stop after high school.