My husband has been a pot smoker all of his adult life and, since his motorcycle accident in June, he received his medical marijuana card. It was almost the first thing he asked for when he 'came to his senses'. I have been doing some research and found articles on a study that was done on rat brains and it said that marijuana actually promoted growth of 'new' brain cells. I also have heard of new studies being done with alzheimer patients and marijuana has shown to be helping them also. The smoking doesn't seem to make him any worse, helps him relax, helps with his appetite, and helps with his pain. He doesn't smoke for a few hours before any cognitive exercises are done with his speech therapist and seems to be doing quite well in that area. He has short-term memory loss, but even that doesn't seem any worse when he is smoking. Has anyone else had any experience with smoking? Any other feedback? Thanks. This is quite a learning experience for our whole family.