http://www.erowid.org/plants/cannabi...s_info14.shtml

http://www.erowid.org/plants/cannabi...bis_faq1.shtml

some good reads sorry i dont know about your arms maby its the lack of air?
general Reviewed by general on . A bit of help please :( SO confused will smoking weed give you lung cancer? Cause my stupid bloody teachers tell me all this stuff, like one joint is as deadly as 5 cigarettes or some shit and weed smoke has 100 more chemicals in it then 2nd hand cigarette smoke :confused: :confused: :confused: Oh and is it bad when your viens in ur arms shrink and look black? like right after u smoke up... Rating: 5