The Economist had this special Valentine’s graph (a bit late I know) showing the relationship between chocolate consumption and frequency of sex.

I like their introduction: “On Valentine’s Day the relationship between chocolate and sex becomes, at least for gentlemen considering the ideal gift, less a matter of theoretical musing and one of stark practicality.”

However, it seems that there isn’t much of a relationship. Just be glad you don’t live in Japan where chocolate consumption and frequency of sex are pretty low…