Longevity is linked to IQ. “A study of 300 individuals spanning almost 70 years suggests that

intelligence, rather than social background, may determine

whether people enjoy good health and a long life.

People who sat an IQ test at the age of 11 in 1932 were ranked

in exactly the same order when they took the exam again at the

age of 77, showing that intelligence is stable throughout life. But

researchers also found that those with high IQs tended to live

longer because they made the right health decisions during their

lives.” Telegraph