Evidence at the hearing showed that women had a much lower rate of passing the running test as compared with men due to physiological differences in aerobic capacity between men and women. (westcoastleaf.org)
The two have minor physiological differences and, more notably, psychological variations that affect how they interact. (discovermagazine.com)
Is it a matter of what's happening between the sheets, or physiological differences among the groups? (health.com)