Why is Crystal Methamphetamine Addictive?
All addictive drugs have two things in common. They produce an initial pleasurable effect, followed by a rebound unpleasant effect. An amphetamine, through its stimulant effects, produces a positive feeling, but when it wears off it leaves a person with the opposite feelings. This is because of the suppression by the drug of the normal production of adrenaline. Now, a chemical imbalance is created and the result is irritability that physically demands more of the drug to go back to normal and feel good again. This pleasure/tension cycle leads to loss of control over amphetamines – and addiction. The Brain s reward system consists of various drives and needs of the body; sex, hunger, thirst and friendship. When these drives are satisfied, or when pain is relieved, a signal is sent to certain brain cells which manufacture a chemical substance that signals reward. When these monitor cells have been stimulated, a signal is sent to the tip where a small amount of this reward chemical is rel
