Some of the highlights from the 75 years long study conducted by Harvard:
alcohol is by far the greatest disruptor of health and happiness, In fact, alcoholism is the single strongest cause of divorce
the people who do well in old age did not necessarily do so well in midlife, and vice versa
memories of a happy childhood are a lifelong source of strength.
Marriages bring much more contentment after age 70,
physical aging after 80 is determined less by heredity than by habits formed prior to age 50.
there was no noticeable difference in maximum income earned by men with IQs in the 110-115 range vs. men with IQs above 150.
the powerful correlation between the warmth of your relationships and your health and happiness in your later years. And also people having warm relationship on an average earns more than those with not so warm relationships
The quality of relationship a child has with mother and father impacts whole of his life.