Holiday sex: Christmas season is peak for mating

‘Tis the season for making whoopee.

The Christmas-New Year’s period produces a year-high spike in sexual activity and conceptions in the United States, according to biorhythm researchers and makers of sex-related products.

They attribute the increase to holiday leisure and New Year’s resolutions to have children. New Year’s irresolution fueled by alcohol and partying is another contributing factor.

“Right before New Year’s Eve is our highest sales peak,” said David Johnson, group product manager for Trojan brand condoms, the leading U.S. seller.

By Frank Greve | McClatchy Newspapers

As expected, the holiday urge surge also expresses itself as a peak in U.S. births in September, according to David Lam of the University of Michigan’s Population Studies Center in Ann Arbor.

Holiday intimacies aren’t just an American rite, according to Gabriele Doblhammer of the Max Planck Institute for Demographic Research in Rostock, Germany. Heavy Christmas-New Year’s sex “is characteristic of all Christian cultures in which it has been evaluated,” she and co-researcher Joseph Lee Rogers found.

A quartet of British public health researchers….

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