I would say that is 7:

1-) cold showers, it increase the imunity and conserve the skin.

2-) wake up early (not too early for beeing tired the whole day) but early enough for beeing able to have at least 2 hours for yourself.

3-) Eat only once a day, believe me our body doesn't need more, and you won’t feel the need anymore when you practice the habbit

4-) Eat less sugar and meat as possible, specially the red one.

5-) Avoid most fruit juices and soft drinks at way from it!

6-) Drink absinth herb tea (without alcohol only the herb!) infuse 10 grams in 500 ml of water, leave for 12 hours and drink it, 3 times per day. Repeat it the same peocess for 3 days, It's bitter, buy it will literally kill the craving, for sugar and unhealthy sweets. Do it every six months.

5-) Do everything with common sense and moderation, like drinking

socially, not smoking but if you do, never cigarettes.

6-) Choose an activity that fit in your life style and that you can do daily or very often with pleasure.

7-) Learn always new things.

That's what I had been learning with my grandmother, who is 97 years old, happy and healthy.

Artemisia absinthium