Indeed, she probably did read that because it's both popular and good advice! Frequent fighting with your partner can wreak havoc on the health of your relationship, and according to a new study from the University of California, Berkeley, and Northwestern University, it can also do some damage to your actual physical health.
As reported over at Cosmopolitan, the longitudinal study analyzed 156 couples' prerecorded conversations and monitored for "outward displays of anger," such as pursed lips, a tight-set jaw, or a furrowed brow. They then assessed the couples' outward displays of rage in comparison to the long-term health problems they experienced over the course of 20 years:
Guys who got outwardly angry were more likely to suffer from cardiovascular issues like chest pain and high blood pressure, while those who keep their emotions on the DL were more likely to suffer from musculoskeletal issues like back pain, stiff joints, and general muscle tension.
So that's fun.
Note: If you happen to be part of a combative relationship in which outward displays of anger and/or bottled-up resentment are standard operating procedure, you might want to jump ship now before it's too late and your health starts to rapidly deteriorate at some point over the next two decades.