Excerpt from
popularmechanics.com 

Both men and women have the right stuff to as astronauts—that much is for sure. But an exhaustive has found physiological differences in how space affects each gender, with some benefitting women over men and some vice versa.

For , women are less vulnerable to the of interstellar radiation, but more vulnerable to space sickness or urinary tract in space. Men have fewer with orthostatic intolerance ( up after extended exposures to microgravity), but develop more vision problems and kidney stones.