The most common painkiller in the world can cause trouble in men when taken for more than two weeks.
The rub-on gel contains two hormones: progestin and synthetic testosterone.
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Five lionesses in Botswana have grown male-like manes and one is even roaring and humping other females.
From horny freshmen to hugs and pacifiers, testosterone powers every man’s relationships.
Women suffering from polycystic ovary syndrome (PCOS) show elevated levels of testosterone and testosterone derivatives in their systems, as well as an increased risk of anxiety and depression. As the offspring of these women (both sons and daughters) show similar symptoms, it’s been believed that PCOS can be transmitted through genetic code. However, a new idea comes to question this — specifically, the fact that the fetuses of mothers with PCOS are gestating in high levels of testosterone is what causes these symptoms.
A study suggests that humanity’s transition to civilization coincided with a drop in testosterone. Less of the hormone is associated with less aggressive behavior and showing tolerance – both essential qualities to a thriving community.
It’s a rather well attested fact that men are significantly better than women at spatial navigation, something that holds across a wide variety of species, not just humans. General belief holds that evolution triggered this response, since our ancestors needed to return home after traveling vast distances in search of food, while the females stayed home. This theory is flawed