Meth among the most highly addictive drugs on Earth
Methamphetamine is an extremely addictive stimulant drug that strongly
activates certain systems in the brain. Chemically, it’s closely related
to the drug amphetamine, but the central nervous system effects of meth
are greater. Meth forces the brain to literally flood its pleasure centers
with dopamine, causing feelings more than 10 times more more positive
than food or other rewards.
As a powerful stimulant, meth, even in small doses, can increase
wakefulness and physical activity and decrease appetite. A brief,
intense sensation, or rush, is reported by those who smoke or inject
meth. Oral ingestion or snorting produces a long-lasting high instead of a rush, which reportedly can continue for as long as half a day. Both the rush and the high are believed to result from the release of very high levels of the neurotransmitter dopamine into areas of the brain that regulate feelings of pleasure.
NATIONAL METHAMPHETAMINE TRAINING & TECHNICAL ASSISTANCE CENTER
Jacksonville, Fla., police photo