When women saw the shock, they still had an empathetic response, even though it was reduced. The men had none at all.

Imaging is still in its early days, but we are transitioning from a descriptive to a more mechanistic type of study.

We observed the same things at the behavioral and imaging level, so we now have a biological representation of that behavior.

Men have more iron in the brain in parallel to women.

Aspirin affects platelets differently in men and women.

We found that women were most attracted to men other than their primary partner when they were in the high fertility phase of the menstrual cycle. That's the day of ovulation and several days beforehand.