A study asking men to infer emotions by looking at the others concluded that testosterone does not affect empathy levels. (Credit: El Nariz/Shutterstock)

Testosterone often gets a bad rap. The hormone responsible for male sexual development has been linked in studies to aggression and a lack of empathy.

People with autism – a developmental condition that can lead to anxiety and trouble interacting with others – also have a hard time empathizing. Since the condition is four times more comm