Marijuana is a green or brown mixture of preserved and crushed leaves of the marijuana plant. A psychoactive drug, marijuana contains fifty percent more tar than tobacco. Smoking this harmful plant can damage the brain, lungs, and male reproductive system and can intensify the effects of epilepsy and psychosis (Kahler, 1988). Within colleges and universities, there are many students who use marijuana recreationally. Long-term marijuana use can induce negative effects on short-term memory, concentration, attention span, motivation, and problem solving, which clearly interfere with learning. Tetrahydrocannabinol, the active ingredient in marijuana, can strengthen dependence on the drug and other addictive drugs (Joffe & Yancy, 2004, p. e632). This has a bad influence on most students who do not study in college or university for such purposes. Legalizing marijuana will lead to an increase in drug addicts and addicts and will certainly send the message that it is okay to use psychoactive drugs. This is why the government should not legalize marijuana. The first reason why the government should not legalize marijuana is that it would lead to an increase in drug users and drug addicts. From a periodic investigation conducted, numerous psychopharmacological properties have been learned about marijuana. Scientists have shown that the emotional stress caused by marijuana withdrawal is linked to corticotropin-releasing factor, the same brain chemical that has been linked to anxiety and stress during withdrawal from opiates, alcohol, and cocaine ( Joffe & Yancy, 2004, p. This could create an addiction to such heavy drugs. Neal Donner, a member of the Libertarian Party of California, argued in favor of legalization…middle of the paper…probably for having distinct behaviors conducive to avoiding drug use (Sigler & Talley, 1995, p. 118) . This very popular program is effective in reducing some preconceptions about drug use in adolescence. Marijuana has been around for decades. It was ingrained in American culture as early as the Jamestown era. Marijuana is the most commonly used illegal drug in the United States and the world, and was an absolute medicine until it was federally criminalized in 1937. It is imperative that marijuana is legally regulated as it can be of great harm to the body human in a number of ways. It can also provoke a number of drug addicts and express the message that it is okay to use psychoactive drugs. Currently, penalties are imposed based on the amount of marijuana possessed. Eventually, the narcotic will be completely eliminated from society.