Methamphetamine is a strong drug that has highly addictive properties. It stimulates the central nervous system and, in the short term, can cause wakefulness and decreased appetite. It can also cause negative side effects such as increased blood pressure and rapid or irregular heartbeats.
Unfortunately, methamphetamine does affect the brain's dopamine levels. It causes dopamine to release rapidly, which gives off a sense of well-being and triggers a reward response in the body. This leads to addiction by making the user want to repeat the experience.