Methamphetamine film by www.NeuroSoup.com Physical effects a small to moderate doses of amphetamines include increased heart rate, raised body temperature, rapid respiration, higher blood pressure, extra energy, dilation of bronchial vessels, and appetite suppression. Long-term use can cause sleep deprivation, heart and blood vessel toxicity, and severe malnutrition. Tolerance develops really quickly causing methamphetamine to […]