Arck said the effects of these stimulants vary depending on quantity, quality and other extenuating circumstances. He said that generally, similar people react the same to similar drugs, but some drugs that are meant to help might be defective, even lethal. This is what is known as rebound insomnia. If the sleep pattern is off, moods are altered. Students are more susceptible to a depressed mood, feeling down.
Some artists claim to use sleep deprivation to become more creative.
Robertson said he doesn't agree. He said students become less creative with less sleep. He said it is more difficult to take a test or write a paper after long periods of disturbed sleep. The problem with treatment is people have different chemical combinations, so it is impossible to predict the effects on everyone. Some people are only affected for a day, others for a long period of time.