The A.M.A the Pharmas and the Docs make money of all the things being tested and pushed into the human body.
I say if your system wants it then you should go for it (generally speaking) and if something as small as smoking makes your day and such then go for it..
When you consider all the exhaust fumes from cars and trucks and plains and so on not to mention chemtrails, well you peeps know what I am getting at hehe..
Namaste-Matte