Work makes the least amount of time go by on a clock
The main thing would be to not smoke. But also if you are around someone who smokes, try to limit interaction with them while they are smoking. second hand smoke can be just as deadly. Also doing things like using smoke free facilities, like smoke free hotel rooms and restaurants.
Walk more, cook food from scratch, make own sauces with less sugar and salt, cut out processed food, grow own veggies,
Helps vitamins and minerals move through the body as its a transport solvent