BBC NEWS | Health | Cannabis smoke 'has more toxins'
Anyone can post links but can you rely on the source of the info.
Pro cannabis will only give positives and anti will only give negatives.
I am only prepared to listen to the monkey that has no axe to grind and they are very thin on the ground.

The truth is that you could give people information and they will chose to ignore it if it doesn't fit thier agenda.

Nothing in this world is all good or all bad , even the best medicine has side effects.