¡°We¡¯ve had a fluctuation in average temperature that¡¯s just huge since 1880 – on the order of about 0.9 degrees Celsius,¡± Lovejoy says. ¡°This study shows that the odds of that being caused by natural fluctuations are less than one in a hundred and are likely to be less than one in a thousand.
They found 60% of 30-year-old women wanted sex "often" at the beginning of a relationship, but within four years of the relationship this figure fell to under 50%, and after 20 years it dropped to about 20%.