I'm going to say all of the above.

I agree with all of the above specialy FAITH IN GOD. since Psalm 36:9 says
With you is the source of life and Acts 17:28 says By him we have life
Genetics also has a important part in the longevity patterns along with increasing physical activity and eliminating damaging habits like smoking drugs and alcohol abuse.
POSITIVE THINKING also has a parte as Prov17:22 says A heart that is joyful does good as a curer...
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I agree with all of the above specialy FAITH IN GOD. since Psalm 36:9 says
With you is the source of life and Acts 17:28 says By him we have life
Genetics also has a important part in the longevity patterns along with increasing physical activity and eliminating damaging habits like smoking drugs and alcohol abuse.
POSITIVE THINKING also has a parte as Prov17:22 says A heart that is joyful does good as a curer...
About SENSE OF HUMOR : It is known that the act of laughing gives a healthy massage to one’s internal organs. Furthermore, according to American Health magazine, some “researchers think laughter may empower the immune system..
In hopes of utilizing the healing power of humor, some hospitals have set up so-called laughter rooms in which patients can play games, watch funny movies, listen to jokes, or simply visit with relatives in a more cheerful atmosphere. Can you put humor to work yourself?
the Bible says: “A calm heart is the life of the fleshly organism,
LOVE OF FAMILY makes us live longer and the reason is because when we are givers when we have a generous spirit we re happy and adds to our longevity as also have work that is a pleasure .

I would say ¨5¨ most of all. It shines through in your answers.