• Produces feelings of isolation and depersonalization.
• Produces shakes, lack of coordination and headaches.
• Makes any mental or emotional problem worse.
• Increases the heart rate.
• Has 50 percent more tar per ounce than tobacco.
• Decreases air flow and creates loss of lung capacity in little more than a month of regular smoking.
• Produces chronic irritation of nasal and lung passages.
• Creates precancerous changes in the lungs of smokers in their 20s.
• Suppresses sex drive and sexual performance with prolonged use.
• Can lead to impotence.
• Harms the developing fetus.
• Is associated with increased still births, neonatal deaths, decreased birth weight and abnormal reactions in children born to mothers on marijuana.
• Decreases brain response, affects thinking and brain function, creates confusion and problems with short and long term memory, and distorts perception of time.
• Causes blackouts.
• Impairs driving skills. Studies show brake response time is increased, concentration is decreased and risk taking is increased.
• Distorts peripheral vision, especially in the first two hours after using.