6 facts from biology to help you understand how men and women interact:
1. When men lose in competition with other men, their sex drive and fertility drop
2. But when they win, their victory confers high status and sexual access to women
3. Eventually, the genes of males who don't reproduce are filtered out of the gene pool (80% of all women in human history have reproduced but only 40% of men)
4. By contrast, women are valued for fertility (shown by youth and beauty)
5. But this can't really be fou…