Humanity has been hunting for sex-based differences in the brain since at least the time of the ancient Greeks, and it has largely been an exercise in futility. That's partly because human brains do ...

A new study found that during extreme endurance efforts like running a marathon, the brain may temporarily break down its own insulation to use as an emergency energy source.

Patients of female doctors had a mortality rate of 10.15% while male colleagues had a 10.23% rate. The study, which has been published in the journal Annals of Internal Medicine, found that the ...