This isn’t the first time that researchers have discovered that coffee
and smiles might go hand-in-hand. A 2011 study found that women
who drink coffee cut their risk of depression by 15 percent compared to those who don’t.
Michel Lucas, the head researcher of the most recent study,
told The Huffington Post that coffee addicts can thank caffeine for the good news.
The drug may actually act like a mild anti-depressant by tweaking levels of happy hormones like serotonin and dopamine.