(1) Get a vaporizer!

(2) Toke only the best you can afford/grow, so you use less.

(3) Stay active.

(4) Drink plenty of healthful liquids. (not sodas)

(5) Take your vitamins- especially natural vitamin E. The navy ordered their submariners to take it to help with living under low oxygen conditions. (My dad was one of them- he took it for the rest of his life!)