The Atlantic Wire's Rebecca Greenfield reports on a new study about the connection between personality and health:

Pretty much anything--too much sleep, not enough sleep, thinking too much--can lead to overeating, as we here at The Wire discovered a few months ago. Well add another one more to that list: a study out of the American Psychological Association finds that impulsive people tend to have more junk in the trunk than more conscientious folks--by a lot. Study participants who scored in the top 10 percent on impulsivity weighed an average of 22 lbs more than those in the bottom 10 percent. Researchers also cite risk taking and antagonism as related traits.

Read the full story at The Atlantic Wire.