Secrets of the Ancients Revealed

Scientists have discovered that high achievers such as company executives, Olympic athletes and even world leaders live on average up to four years longer than the general public.

Researchers believe that being both industrious and scrupulous at the same time appear to be the key to the extra longevity even though the individual's jobs may be more stressful than the average person.

The Telegraph

Makes sense to me. If you have a purpose in life, and know your own moral goals as well, you don't spend as much time on unproductive, exhausting activity.