The acute effects of crystal meth or methamphetamine include increased heart rate and blood pressure, vasoconstriction (constriction of the arterial walls), pupil dilation and hyperglycemia (increased blood sugar). A person who ingests crystal meth will experience an increased focus and mental alertness, the elimination of the subjective effects of fatigue and a decrease in appetite. Continued high doses of methamphetamine produce anxiety reactions during which the person is fearful, tremulous and concerned about his well-being; a methamphetamine psychosis in which the person misinterprets others’ actions, hallucinates and becomes unrealistically suspicious; an exhaustion syndrome, involving intense fatigue and need for sleep after the stimulation phase; and a prolonged depression, during which suicide is possible. Continue reading Body By Crystal Meth