According to the Centers for Disease Control and Prevention (CDC), heart disease is the leading cause of death in the United States. When people think about heart health, they often think about the impact of diet and exercise. However, a growing body of research has also established a connection with positive thinking, optimism, and happiness.
For example, do you tend to view the cup as half empty or half full? If you view the cup as half full, you are less likely to develop heart disease than if you view the cup as half empty. While negative emotions such as depression and anger are risk factors for heart disease, optimism and happiness seem to protect the heart.
In one study, people with the most negative emotions had the highest risk for heart disease while people who scored highest for happiness had the lowest risk. In another study, women with the highest levels of optimism had a 38% lower risk of death from heart disease than those with negative attitudes. In this study, optimism was defined as feeling hopeful and confident about the future.

How can the connection between positive psychology and heart health be explained? Three possible explanations are:
- Lifestyle: Happy people tend to sleep better, eat better, smoke less, and get more exercise; all behaviors that lower the risk of heart disease.
- Physiology: Happiness produces positive chemical changes and reduces stress hormones.
- Genetics: People who are predisposed to happiness may also be predisposed to have lower rates of heart disease.
If you tend to see the cup half empty, don’t despair! Research suggests that negative people feel happier when they:
- Express gratitude on a regular basis.
- Practice being optimistic.
- Initiate random acts of kindness.
- Engage in mindfulness activities.
- Visualize their best self.
- Savor joyful events.
- Practice forgiveness.
- Get outside.
Medical professionals advocate that you should devote 15 to 20 minutes a day doing something that brings you joy. What can you commit to doing every day to increase your happiness and take care of your heart at the same time? We would love to hear your ideas and plans.
If you still find yourself searching for happiness but not quite achieving it, you should reach out and talk to a health care professional. Together, you should consider environmental factors that could be impacting you, such as your diet, lack of sleep, or potential mental health side effects from medication.
To learn more about the importance of happiness and your health, join us for Happiness 101 on August 25, 2021 at 12noon. To register for this free, 30-minute Wellness Wednesday Webinar sponsored by Live Healthy Live Well, visit: go.osu.edu/WellnessWeds
Written by: Laura Stanton, Family and Consumer Sciences Educator, Ohio State University Extension, Warren County, stanton.60@osu.edu.
Reviewed by: Pat Brinkman, Family and Consumer Sciences Educator, Ohio State University Extension, Fayette County, brinkman.93@osu.edu.
References:
Centers for Disease Control and Prevention. (2020, September 8). Heart Disease Facts. Retrieved from https://www.cdc.gov/heartdisease/facts.htm
Davidson, K. W., Mostofsky, E., & Whang, W. (2010). Don’t worry, be happy: positive affect and reduced 10-year incident coronary heart disease: the Canadian Nova Scotia Health Survey. European Heart Journal, 31(9), 1065–1070. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2862179
Kim, E. S., Hagan, K. A., Grodstein, F., DeMeo, D. L., De Vivo, I., & Kubzansky, L. D. (2017). Optimism and Cause-Specific Mortality: A Prospective Cohort Study. American Journal of Epidemiology, 185(1), 21–29. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5209589
Kraft, T. L., & Pressman, S. D. (2012). Grin and Bear It: The Influence of Manipulated Facial Expression on the Stress Response. Psychological Science, 23(11), 1372–1378. https://doi.org/10.1177/0956797612445312
Pitt, B. & Deldin, P.J. (2010). Depression and cardiovascular disease: have a happy day—just smile!, European Heart Journal, 31(9), 1036–1037. https://doi.org/10.1093/eurheartj/ehq031