Feeling persistently resentful toward other people -- the boss who fired you, the spouse who cheated on you -- can indeed affect your physical health, according to a new book, "Embitterment: Societal, psychological, and clinical perspectives."Just how bad can it get?
In fact, the negative power of feeling bitter is so strong that the authors call for the creation of a new diagnosis called PTED, or post-traumatic embitterment disorder, to describe people who can't forgive others' transgressions against them.
Feeling bitter interferes with the body's hormonal and immune systems, according to Carsten Wrosch, an associate professor of psychology at Concordia University in Montreal and an author of a chapter in the new book. Studies have shown that bitter, angry people have higher blood pressure and heart rate and are more likely to die of heart disease and other illnesses.Seriously, dude, you've turned into the Poster Child for PTED.