Marijuana?

So like, I only smoked once in my life before and I was wondering...... like how soon do your lungs turn black/gray. And from this one time (3 joints shared) are they already gray or is it from a lot of times?

^^^^^^ And I'm sure you look at your lungs regularly, eh? Right...
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Different people's bodies react differently, some the results show themselves quickly, while others they may wait until they're older.
Either way, "Drugs are bad, mmk"

can't say i think it takes a little longer than 1 time i have been smoking for about 4 years prety heavily now and my lungs are fine

Who cares. Puts you off your weed lol.

I think that it takes a lot longer than that -- but if you continue everyday then yo煤'll feel it in your lungs and so then you'll know that it's too much. Best thing not to smoke at all...

you need to smoke alot to really mess up your lungs. Also, if you ues clean methods of smoking, like water bongs, they won't get dirty at all.

Doesn't cause near the same problems as tobacco smoke....you should get a vaporizer though. That way you get the benefits of Cannabis without the ill effects of combusting and inhaling smoke. Google them, they are worth the money! Lots of uneducated people on the subject will probably reply and tell you that it is bad for you, but do the research for yourself. It does not kill brain cells or do any of the the bad things the propagandists would like you to think.....

it couldn't be a lot but a little bit a lot of times adds up.
I think they compared it to tobacco in 1 commercial saying 1 joint was x times as bad as 1 cigarette, but if you think about it having a few cigarettes in your life isn't bad, it's if you actually smoke regulary that your lungs die.

Smoking once isn't going to hurt you. It takes years of chronic chronic (hehe, pun... okay bad joke) before you start to deal with the consequences of your actions.

both smoke from marijuana and cigarettes will take more than one time to have enough tar build up to make a color change in your lungs. even then if you do not smoke regularly you body should be able to recover in a short amount of time.

hahahhahha it takes years for that to happen. and if your worried about that, use a vaporizor