Optimism and Heart Attack Prevention

Recent studies are showing that a positive outlook, or optimism, actually improves heart health (The Washington Post, May 14, 2026). Researchers at the University of Illinois at Urbana-Champaign reviewed 18 randomized, controlled studies. These trials looked at the impact of optimism training on cardiovascular health.

Participants were taught to focus on the positive and not the negative aspects of life. Study results consistently showed that those who were optimistic were able to lower their blood pressure and inflammatory markers in their blood—markers that indicate a risk for heart attack and stroke. As another researcher observed, “When people persistently experience stress, emotional strain or pessimism, the body responds…. Stress hormones surge, insulin resistance can rise, and inflammation increases…. The opposite appears to be true as well—that optimism may help dial down the same negative biological responses.”

Many biblical principles highlight the importance of focusing on the positive rather than the negative. Jesus taught us not to worry over what might or might not happen. Instead, we should “seek first the kingdom of God and His righteousness, and all these things [food, clothing, shelter, etc.] shall be added to you” (Matthew 6:33). Being thankful is another way to improve our optimism—focusing our minds on our blessings and on the God who gives all blessings (James 1:17). To learn more about how to be optimistic, read our commentary “Four Ways to Be More Thankful.”