5. Laughter protects against heart disease
“Research suggests that a good sense of humor wards off heart attacks,” says psychologist Steve Wilson. “Laughter dilates blood vessels so blood flows more freely. Humor was a significant positive addition to standard cardiac rehabilitation.”Michael Miller, MD, director of the Center for Preventive Cardiology at the University of Maryland Medical Center, reports that laughing reduces the fat and cholesterol build-up in the coronary arteries. “The old saying that ‘laughter is the best medicine’ definitely appears to be true when it comes to protecting your heart,” he says.