Dr. David Ohlms answers often asked questions about the dangers of methamphetamine, known by the street terms: speed, crystal, crank, ice and meth. He addresses the powerful addictive nature of the drug, explaining how it stimulates the central nervous system, giving the user a "rush" before crashing them into a violence-prone depression as the effect of the drug wears off. Dr. Ohlms discusses the dual psychological and physical withdrawal effects in detail.