It's true, scientists say...your love [1] life really can go up in smoke. Research indicates that smokers have sex [2] less often and are less likely to enjoy making love [1] than nonsmokers, and the longer they've been smoking, the worse it can get.

According to a report to the American Society for Reproductive Medicine [3], men who have smoked from seven to 15 years had nearly 50 percent less sex [2] than nonsmokers. They -- and their partners -- also were left less satisfied by their lovemaking.

The research by scientists in the United States and Greece was part of a study on the effects of smoking on infertility. They examined 290 couples undergoing infertility treatment, including 158 men who were considered heavy smokers.

The scientists said the smokers received a top score of six out of a possible 10 for satisfaction in their sex [2] life, while some nonsmokers scored nine out of 10. Also, they said, nonsmokers made love [1] 14 times a month on average, compared with only seven times a month for smokers.

So, if you need yet another reason to kick the habit, think of your potential love-making quotient bumping up three points!