This is a great article. It is always a good thing throughout our lives to think about forgiving people who have done us (or others) wrong. This adds an additional incentive, claiming it is also good for our health. John Hopkins is a very reputable institution, so the theory has been put to the test!
http://www.hopkinsmedicine.org/news/publications/johns_hopkins_health/summer_2014/the_healing_power_of_forgiveness?utm_source=July+14&utm_campaign=July+14&utm_medium=email