It is highly individual. No rules at all. Plus, there are so many varieties of marijuana. For me edible cannabis chocolate is a very good sleep medicine which is better, milder, and gentler than pharmaceuticals. the only thing I do not like about marijuana is that it does not allow me to remember my dreams.

I was told by the dr who prescribed marijuana for me that one should not smoke, period. This is harmful for the lungs. Vaporizing, edibles, drinkables (mango lassi etc). all avoid damage to the lungs.