Why are ice and crack so much more potent and problematic?
What is hyperactivity disorder? Why do amphetamines and other drugs such as Ritalin and Adderall seem to work to control this disorder when it seems counterintuitive?
Why do physicians not have an problem prescribing nicotine in the form of patches and gum given that smoking is so bad for you?
How does caffeine cause a slight stimulatory effect?