Calveless wonder is right. I think that you would be surprised if you knew how many bodybuilders smoked the cheeba. Is it bad for your lungs? Well ... ya. Is dbol bad for your liver? Well ... ya.
I am not big into the pot anymore, but dabble in it from time to time as a treat. It is a great muscle relaxant, helps with any pain, de-stresses me out (this is the biggest reason I will use it), it increases your appetite, and its just fun.
A night of weed for me .. is a relaxing night. I will relax, spark a joint, then get in a huge cooking zone, usually BBQ. The appetite thing is good if you cook some good shit. Then its just a matter of veggin out, and watchin a few movies, and relaxing, then boning my chick, cause boning high freakin rocks. Thats about it for me nowadays. I will smoke maybe once a month if that. Like I say .. its just a treat for me to relax every now and again. I think its quite harmless bro. Especially when you think of what else we put our bodies through.
Cheers,
Mavy