Some men have an easier time being married than others. Now we learn DNA plays a big part in marriage. A brain hormone called vasopressin influences men’s bonding with a sex partner. More vasopressin makes men feel closer and want to stick around. Hasse Walum at the Karolinska Institute in Sweden and his research team report on the effects of a variation in the gene that determines the...
Men Who Stray — and their DNA
M
