But how this is actually put in practice varies widely throughout the country, and some are complaining that there is still a long way towards equal rights and towards laws that make sense for homosexual couples. Body odour was particularly important, the volunteers reported, in decisions not to have sex with a certain individual. To answer this question, Ober and her colleagues studied couples drawn from 31 Hutterite colonies. Tyvärr stödjer vi inte din version av webbläsare. Show references Hide references. Swedish Radio is independent and not affiliated to any political, religious, financial, public or private interests.
Tron på att blundar jag så finns det inte funkar helt enkelt inte.
Insemination rules draw fire
In fact some couples become so obsessed with timing sex during ovulation that they actually hurt their chances of getting pregnant. Next, the researchers compared these calculations with the actual situation. Women are only fertile during the few days leading up to ovulation. Instead of being attracted to the scent of dissimilar men, they chose men whose genes for immunity were closest to their own. Lapparna visar att kunskap behövs.