Methamphetamine, or meth, is a stimulant drug that hastens Your whole body’s central anxious technique. It boosts dopamine, that's a brain chemical that plays a component in motion and drive. Dopamine also sends a sign that lets you know to repeat behaviors that make you feel good.Au?tr?l??n ?u?t?m? ?r? ?? t?ght ?n ?u?h a w?? th?t ?f ??u ?r? not