The Mayo Clinic conducted a study that offers insights into how positive thinking can contribute to how well - and maybe how long - you live.
According to the 2006 study on thyroid cancer survivors, optimism may be associated with a higher quality of life, both mentally and physically. Another recent study by The Mayo Clinic goes a step further, claiming that an optimist may enjoy a longer life than a pessimist. An optimist is less likely to have depression and may be more likely to maintain a healthier lifestyle, paying more attention to their diet and activity levels.