Dear student,
There are following factors which affects our healthy life:-
1) Diet: The diet should include protein, carbohydrate, fiber and amino acids.
2) Exercise: It improves functioning of heart, ability to tackle stress, better sleep, increased circulation etc.
3) Sleep: It increases our energy level, reduces ageing process, improves immune system etc.
4) Activity: Working s an important part of healthy lifestyle because it removes boredom and gives you a motive in life.
5) Happiness: It improves immune system and digestive system.
Regards