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Marijuana

Marijuana is the most widely used illegal drug in America today. However it is the least understood. Not until about the 1960's did many people know about marijuana and the harm it causes. Marijuana is a green, brown and gray mixture of dry shredded leaves from the hemp plant (Cannabis Sativa). Marijuana contains more than 400 chemicals, but the main chemical responsible for the "high" that you receive is THC. THC expands your blood vessels in the brain and the lungs allowing more oxygen to flow through your the body. This causes your heart to speed up and lowers your blood pressure. Having lower blood pressure means that there is going to be less blood flowing to the brain causing the "high" that you get, because it alters the mind by slowing down the thinking process. Marijuana increases the heart rate up to 150 beats per minute.

There are different forms of marijuana so


Frequent users become very lazy and cannot concentrate on much of anything. In some rare cases users that take in to much THC may have serious psychotic side effects and need immediate medical treatment. Even though the long-term effects of marijuana are still not known, there are studies showing serious health concerns. A group of scientists in California examined the health conditions of 450 daily marijuana users. They found that the marijuana users had more sick days and doctor visits for respiratory problems and other types of illnesses than did a similar group who did not smoke any type of substances. 93% of all people that have done cocaine started off with weed.

In 2737B.C marijuana was common in both China and India. During World War I Mexican immigrants workers brought marijuana over the USA border and its been coming over ever since. Because it grew all over in Vietnam, it

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THC THC, THC Marijuana, War Mexican, Jamaica Governments, Marijuana Marijuana, Sativa Marijuana, America Marijuana, illegal drug, blood pressure, users sick, stems seeds, marijuana marijuana, marijuana users,
Approximate Word count = 603
Approximate Pages = 2 (250 words per page double spaced)


  

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