There have been studies done on this subject that show the impact:
“The type of personality you have can impact your health and well being, according to the Mayo Clinic. People who think positively may reap a number of health benefits. While the precise reasons for this remain unclear, it may be because happy people generally live healthier lifestyles that include regular exercise, healthy eating, not smoking and lower alcohol consumption.
An optimistic attitude may lower the risk of developing cardiovascular disease, advises the Mayo Clinic. The American Heart Association reports that cardiovascular disease—the combination of heart disease and stroke—claims 950,000 lives in the U.S. each year.
There may be truth the old saying that laughter is the best medicine. A study by cardiologists at the University of Maryland Medical Center found that laughter, along with an active sense of humor, may help protect against a heart attack. The study found that people with heart disease were 40 percent less likely to laugh in a variety of situations, compared to people of the same age without heart disease.”
Note: These are just a couple of sections of a very interesting summary of the study.
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