Relationships tend to be happier when partners share pastimes, whether that's watching a favorite TV show or training for a triathlon. Research now shows that drinking -- or the lack thereof -- counts in those pastimes. A 2013 study in Alcoholism: Clinical and Experimental Research found that couples with similar drinking habits are happier. The flipside was also true: relationships where one partner drinks and the other abstains have a higher divorce rate. Interestingly, when the wife is the one who does the drinking, that risk shoots even higher. The 2013 study was of many age groups, but a 2016 study in the Journals of Gerontology that only looked at couples over 50 also found this to be true. Matched drinking habits may be a sign of a compatible couple, rather than the cause, since couples who share drinking habits are likely to share other activities at the same time. This isn't to say that drinking doesn't have its drawbacks. The 2013 study found that couples with two heavy drinkers had a higher risk of divorce than those with light drinkers, even though they shared drinking habits. We've collected some awesome videos on this topic. Watch them now to learn more.