Yesterday I watched Super High me. The guy doesn't smoke weed for 30 days, takes some tests, like memory tests and physic tests and shit. Then smokes weed 'all day' for 30 days, to see if anything changes or if it affects his health. He got better on the physic test and only 2 points less on the memory test, and the doctor said they found no long term damage done to his body. Pretty sweet.