Blaming others for your misfortune and dwelling on that anger instantly induces a stress response in the body. Since stress is associated with a host of illnesses, it's no wonder that prolonged feelings of bitterness can significantly damage a person mentally and physically.
A team of researchers at the Concordia University Department of Psychology conducted research into the effects of chronic bitterness.
"Persistent bitterness may result in global feelings of anger and hostility that, when strong enough, could affect a person's physical health," said researcher Carsten Wrosch. "In order to deal with bitter emotions there may need to be something else required to enable a person to overcome the negative emotion – that something is forgiveness."
The scientist has been examining the effects of bitterness for 15 years. He found that failure is often a catalyst for the feeling, and it is typically accompanied by anger and recrimination.
Over time, bitterness can cause a biological dysregulation, which affects the metabolism, immune system and organ function. This kind of stress has been known to lead to physical ailments.
Authors of the study said that in order to achieve success in life, individuals must learn to let go of their negative thoughts.
Philosopher Ilchi Lee has similar beliefs. He says that unlocking brain potential to embrace positivity and let go of harmful thoughts and ideas is key in attaining fulfillment.
Individuals seeking success and happiness should think of positivity as the fuel which drive them great distances toward their personal development. It is only when we rid the brain of negativity that we can fill it with enlightening ideas.