According to a new report from McClatchy Newspapers The Christmas- The Christmas-New Year’s period produces a year-high spike in sexual activity and conceptions in the United States.

The report is based on studies by 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.

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.

There’s tons of reasons if you think about it. Getting drunk at the office party, or the holiday party, or the new year’s party. there’s getting lonely and looking for something to hold on to, getting bored cause there’s no new tv shows on till January. There’s even just the fact that you’ve got more time off from work, or… you gave her such a great gift that you know you are gonna get some…. so Happy Holidays, no matter which one you celebrate… now go out there and bump some holiday Uglies!