Why is the marijuana illegal?

Published 30 May 2017

I. Introduction:

Marijuana is considered is illegal because it has more negative effects if abused by users. Marijuana both the dried leaves and flowering tops of the female hemp plant. Resin in the leaves and flowering tops contains tetrahydrocannabinol, or THC, a chemical that produces an intoxicating effect when the resin is smoked, sniffed, or eaten. The resin is weaker than hashish (pure hem resin).
This paper intends to explain why marijuana is illegal.

II. Discussion

Marijuana has been used for thousands of years, both as a medicine and for its intoxicating effects. In the form of tablets, marijuana is frequently to relieve the nausea and vomiting that often accompany chemotherapy. Its nonmedical use, however, is illegal in the United States and most other countries. The penalties for possessing or using marijuana are, in many states, as severe as those imposed for the possession or use of much more potent drugs. Many argue that marijuana is no more harmful than cigarettes and liquor and should be legalized.

Most marijuana used in the United States is smoked— either as cigarettes or in pipes. Its effects vary with its strength, and to a great extent with the state of mind of the user. Typically, a sense of well-being is experienced. In large quantities, marijuana is considered to be a hallucinogen—a drug that produces hallucinations.

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Although marijuana does not produce a physical dependence in the user, there is evidence that it can produce a psychological dependence. Research indicates that marijuana has serious effects on the body. It can impair memory, speech, and learning. It exposes the lungs to high levels of tar and to over 150 other chemicals. Many of these can irritate the lining of the lungs, causing inflammation and bronchitis in some cases. Marijuana decreases the production of male and female sex hormones and may cause infertility in some individuals. Pregnant women would refrain from smoking marijuana since it can cross the placenta and affect fetus.

III. Conclusion

Some authorities believe that the heavy use of marijuana may harm the body’s immune system by impairing the development of monocytes, cells that stimulate antibody production and kill foreign cells. Although no direct cause-and-effect link between the use of marijuana and narcotics has been found, a person who consistently uses marijuana may be likely to abuse other, stronger drugs. The use of marijuana can be dangerous to a person taking part in any activity in which quick reflexes and clear thinking are necessary.


  • Marijuana. Drug Awareness.
  • Bock, Alan W. (2000). Waiting to Inhale: The Politics of Medical Marijuana. Seven Locks. Santa Ana, CA.
  • Earleywine, Mitch. (2002). Understanding Marijuana: A New Look at the Scientific Evidence. Oxford University Press. New York.
  • Parker, Jim. Marijuana: Health Effects.
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