sexual orientation

We have two genders: male and female. It is an old-fashioned conception, in which biological characteristics are the most authentic proof of that concept.

The history tells that Alexander the Great had a homosexual tendency because he fell in love with the commander of the cavalry Hephaestion, both sticking together as lovers.

Recently, scientists from Charles University in Prague (Czech) found that men infected with toxoplasmosis parasites were more likely to be sexually abusive, love and affection.

Researchers from the Monell Center (USA) found that the smell of earwax can reveal identity information, even our sexual orientation and health.

American experts discovered, when a person looks at pornographic and irritated images, the pupils in their eyes will unconsciously expand.

Stanford University research has found that the human face has a difference that shows sexual orientation, IQ and even the person's political views.