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Exposing the Myth of Medical Marijuana Page 1 of3 Exposing the Myth of Medical Marijuana Marijuana: The Facts Q: Does marijuana pose health risks to users? . Marijuana is an addictive drug1 with significant health consequences to its users and others. Many harmful short-term and long-term problems have been documented with its use: . The short term effects of marijuana use include: memory loss, distorted perception, trouble with thinking and problem solving, loss of motor skills. decrease in muscle strength, increased heart rate, and anxiety~. . In recent years there has been a dramatic increase in the number of emergency room mentions of marijuana use. From 1993-2000, the number of emergency room marijuana mentions more than tripled. . There are also many long-term health consequences of marijuana use. According to the National Institutes of Health. studies show that someone who smokes five joints per week may be taking in as many cancer-causing chemicals as someone who smokes a full pack of cigarettes every day. . Marijuana contains more than 400 chemicals, including most of the harmful substances found in tobacco smoke. Smoking one marijuana cigarette deposits about four times more tar into the lungs than a filtered tobacco cigarette. . Harvard University researchers report that the risk of a heart attack is five times higher than usual in the hour after smoking marijuana.' . Smoking marijuana also weakens the immune system4 and raises the risk of lung infections.~ A Columbia University study found that a control group smoking a single marijuana cigarette every other day for a year had a white-blood-cell count that was 39 percent lower than normal, thus damaging the immune system and making the user far more susceptible to infection and sickness.6 . Users can become dependent on marijuana to the point they must seek treatment to stop abusing it. In 1999, more than 200,000 Americans entered substance abuse treatment primarily for marijuana abuse and dependence. . More teens are in treatment for marijuana use than for any other drug or for alcohol. Adolescent admissions to substance abuse facilities for marijuana grew from 43 percent of all adolescent admissions in 1994 to 60 percent in 1999. . Marijuana is much stronger now than it was decades ago. According to data from the Potency Monitoring Project at the University of Mississippi, the tetrahydrocannabinol (THC) content of commercial-grade marijuana rose from an average of 3.71 percent in 1985 to an average of 5.57 percent in 1998. The average THC content of U.S. produced sinsemilla increased from 3.2 percent in 1977 to 12.8 percent in 1997.7 Q. Does marijuana have any medical value? . Any determination of a drug's valid medical use must be based on the best available science undertaken by medical professionals. The Institute of Medicine conducted a comprehensive study in 1999 to assess the potential health benefits of marijuana and its constituent cannabinoids. The study concluded that smoking marijuana is not http://www.usdoj.gov/dea/ongoing/marijuanap.html 4/29/2005