Being an Optimist May Protect Against Heart Problems, Harvard School of Public Health Study
Being cheerful may protect against heart problems, say US experts. Happy, optimistic people have a lower risk of heart disease and stroke, a Harvard School of Public Health review of more than 200 studies - reported in Psychological Bulletin - suggests. While such people may be generally healthier, scientists think a sense of well-being may lower risk factors such as high blood pressure and cholesterol.