Constant bitterness can make a person ill, according to Concordia University researchers who have examined the relationship between failure, bitterness and quality of life.
Over the last 15 years, Wrosch has investigated how negative emotions, such as regret or sadness, affect people. Most recently, he has focused his attention on the impact of bitterness. With his co-author, Concordia alumna Jesse Renaud, they single out failure as one of the most frequent causes of bitterness. Anger and recrimination are its typical attendants.