A healthy life is a life which fulfills some rules. Some of them are given here:
Physical activity, it helps to keep body and mind in balance.
As for me I like dancing and swimming. My husband likes doing karate.
In the past I liked running.
Simple food. Pure water. Everybody should avoid fast food, fried food, chips, lots of sweets and fat.
Good rest, neither too long, nor too short. For me it`s about 8 hours, but every day I sleep from 6 to 7 hours and more on Sundays or holidays.
It`s good once a week to visit the doctor and to do a test.
It`s important to have a hobby or to do interesting work.