pinsky, the late lenny bruce, very funny guy once said there must be a good side to drug addiction orlse why would so many people take it and they say it kills you and they race down to the store to get it or steal it or whatever you k how does the brain deal with that? why would any person with a brain take cone cane? >> there's two answers to that question, one is why you start using it and why you can't stop using it. the starting is you're trying to find a solution to a problem, you're trying to feel better. >> larry: and your brain tells you this? >> culture tells you that, and guess what? it works. they use drugs because they work. they do feel better, a lot better for an extended period of time many times and then a second phenomenon kicks in which is the disease of addiction and in spite of out no longer working, i would like to call it the do it again part of their brain has been altered in such a way to require them to do it again, do it again. >> larry: what does the addiction, the need for the cocaine do to the brain? because the buenos it's damaging. >> the brain is clear

. >> larry: the late lenny bruce said marijuana will be legal one day, because every law student i knowt in november and there's the old saying as california goes, so goes the nation, so -- >> larry: it was maine. >> let's change it to california. >> larry: another twitter question. lots of them, by the way. we mentioned you, the tweets came in. asking about pot smoking. basically, how much and how often? >> well, you know, i have changed my habits a little bit. my lungs -- and i smoked so much, and i would roll them and smoke them, roll them and smoke them, but i did get congestion from it and was wheezing in the night and so i switched over to a vaporizer, which you don't get any smoke and you don't get any heat, and for a singer or someone's lungs, it is much, much healthier. >> larry: it's not pot, right? >> oh, yeah. pot in the vaporizer, but when you -- you know, you puff it in, you're getting vapors, but not heat and not smoke. >> larry: does it have the same effect? >> yeah, it's even stronger i think. >> larry: did you ever fear it might be harming you? >> well, i kind of quest

. >> larry: the late lenny bruce, very funny guy, once said there must be a good side to drug addiction would so many people take it, if they tell you it kills you and you run down to the store to get it, or steal it or do whatever you can. how does the brain deal with that? why would any brain -- person with a brain sniff cocaine? >> there's sort of two answers to that question. one is why you start using it and why you can't stop using it. >> larry: let's start with the start. >> the starting is you're usually trying to find a solution to a problem, and feel better. if your brain is genetically set up a certain way, it works. that's what you have to acknowledge in drug addicts. they use drugs because they work. they do feel better. a lot better. for an extended period of time many times. and then a second phenomenon kicks in. which is the disease of addiction. whereby, in spite of it no longer working or having serious consequences in their life, the what i like to call it the do it again part of their brain has been altered in such a way to require them to do it again, do it again. >