In one of these, the brain on drugs is compared to eggs frying in an over-heated skillet. They often make claims that the use of certain drugs causes permanent damage to the nervous system or other systems of the body. In the state of South Carolina at the present time, for example, state employees are subjected to random drug tests. The Truth Tree's position on drugs is that neither the drug advocates nor the drug conservatives are entirely right about drugs. This is probably only true for people who already have thought deeply about how their minds work, but there is no definitive information on this subject.
Tobacco does seem to facilitate the performance of monotonous or otherwise disagreeable tasks.
It would be hard to discount completely the effects of some drugs on creative work. There have been attempts to show that marijuana increases creativity, but close inspection of some of the measures of creativity used in these studies shows that the researchers were measuring messiness or disorganization. There have been a few notable examples of great poetry being written under the influence of drugs. Perhaps the most famous of these is Coleridge's Xanadu which was written under the influence of opium. Beethoven drank beer while composing.