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Marijuana & Its Positive and Negative Affects

Updated on June 19, 2013
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Marijuana

Marijuana, also called Cannabis Savita, is a plant that contains a chemical called Delta-9-tetrahydracannibal, which is known as THC. Marijuana is a drug because it alters the brain’s functions and controls. It is known as a depressant because the psychoactive effects give the user a relaxed feeling. Besides the fact that marijuana is one of the top three drugs that Americans use, other cultures around the world use marijuana daily. This drug is mostly debated for its legalization in the United States. Many doctors agree that marijuana helps cancer patients through chemotherapy treatments. Many other citizens believe marijuana is not a drug. The effects of smoking marijuana are not as damaging as smoking tobacco but there are still many bad effects from smoking it. Because this drug has both pros and cons, it is still highly debated to this day.

Marijuana is known to alter the way your body functions because the drug that the plant contains enters your blood stream within minutes after you inhale the marijuana smoke. This drug is called THC. The doses of THC vary between the variations of the plant. When people grow their own marijuana, it is said to contain less THC than the ones that are grown in a plantation. There are studies in labs that show how marijuana affects the brain. THC actually contains something similar to a neurotransmitter that fits into a receptor site of the brain. Because the brain contains over hundreds of neurotransmitters and many were not discovered yet, people called this molecule a cannabinoid. In 1988, people finally discovered that the cannabinoid was similar to the actual brain neurotransmitter, the anandamide. This neurotransmitter in the brain influences pain, depression, appetite, memory, and fertility. These receptor sites are located in the basal ganglia, cerebellum, and limbic system of the brain. By smoking marijuana, it decreases any pains in your body, subsides depression, increases appetite, lowers the ability for memorization, and creates infertility. This drug is considered to be harmless because it does not affect the brain stem and it mimics a neurotransmitter of the brain.

Marijuana can contain positive effects to the body. Earlier stated, many doctors allow their cancer patients to smoke marijuana because many undergo chemotherapy treatment. There are many side effects to chemotherapy, such as an urgency to throw up, pain everywhere on the body, loss of appetite, and many more effects. By giving marijuana for the patient to smoke, the THC molecules, will help counter act the side effects of chemotherapy. The patient will feel less pain throughout the body and will be able to eat because they will have an increase of hunger. Doctors also agree that smoking marijuana is a better alternative than taking pill medication for depression because it is more natural. Man-made drugs are a lot stronger and more harmful for the brain and body. Marijuana is a more natural, although not permanent, solution to depression.


Marijuana actually contains more negative effects to the body. Because the most preferred way to intake THC is to smoke marijuana, many only smoke it. Smoking anything into the body has bad effects. The smoke, because it is toxic and contains carbon dioxide, kills the cilia that filter harmful pathogens located around the throat and lungs. It is similar to smoking tobacco because it creates precancerous cells in your respiratory system. There is a chance to acquire cancer because of smoking marijuana. Other problems from smoking are the following: “laryngitis, pharyngitis, bronchitis, asthma-like conditions, cough, hoarseness, and dry throat.” (Narconon Georgia) Smoking lowers oxygen flow to everywhere in your body. This means that your body has to work harder to bring oxygen to your muscles. This can lead to a heart attack because your body might overwork to provide oxygen to all the muscles and parts of your body. Your body automatically develops a tolerance for substances that you do a lot; This will lead to an increase of smoking to get the same effects as once you first started. Inside the brain, the hippocampus is altered. The hippocampus is responsible for memory. Marijuana affects short term memory and it does not allow people to remember short term memories. Although THC does mimic a neurotransmitter that the brain automatically creates and has, it is physically inhaled into your body. Therefore, this will create an imbalance in the brain because the brain only makes the neurotransmitter, anandamide, when necessary.
Based on the many studies done, marijuana contains positive and negative effects on the human brain and the body. Hopefully, by reading this essay, people can become more educated on this natural plant and its’ effects.


-by Esther Au

different selections of marijuana
different selections of marijuana | Source

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    • profile image

      Alexandria 3 years ago

      I find majiuana absolutely disgusting but I don't know if it is worse the drinking alcohol

    • profile image

      sam 3 years ago

      peace

    • profile image

      leo 3 years ago

      i like it

    • profile image

      katherine 3 years ago

      ^mad mother

      pot doesn't lead to harder drugs because it is not addictive

      your son probably smoked cigs before he used pot

      got addicted to the tabbaco.

    • profile image

      Kyle 4 years ago

      If you do your homework (as a straight A college student working part-time and 16 credit hours like I do),you will find that the THC cannabinoids actually encourage apoptosis, a form of pre-programmed cellular death (one way cancer cells are cancerous because of their lack of apoptosis). THC, and other marijuana compounds, fight and prevent cancers. They shrink tumors and other cancerous areas. These are the ones that have been exclusively proven to fight colon cancer, prostate, breast, lung (funny!), brain, and leukemia cancers.

      The best part of these compounds is that they only target abnormal cells, and leave healthy cells by themselves. In a way, they are detoxifying and removing the cancerous cells that form, and help assist in preventing cancers from forming.

      http://www.thedailybeast.com/articles/2012/09/06/m...

    • MMJSource profile image

      Sang 4 years ago from Washington, USA

      Positive effects of marijuana commonly used for medical benefit including Decreasing of inner-eye pressure, Pain reduction, Nausea and vomiting suppression, Appetite stimulation.

      And positive effects of marijuana are often used in treating:

      Cancer - specifically the pain, nausea and vomiting associated with cancer treatment

      Chronic pain - strong evidence for use in cases where other pain medications aren't working

      Multiple sclerosis (symptoms) - strong evidence for use for pain, muscle spasm and urinary problems

      Glaucoma - due to marijuana's ability to reduce ocular pressure

      -------------

      http://www.mmjsource.com/all/washington/seattle

    • Joseph Renne profile image

      Joseph Renne 4 years ago from Milton

      New test say that people who toke up are slimmer and at lower risk of developing diabetes. Studies show that THC help control blood sugar levels. I seen something in TIME and on the NORML site

    • profile image

      jj 4 years ago

      i love treeske

    • profile image

      crazy phychotic stoner 4 years ago

      Mad mother has a lil probblem with that reefer

    • profile image

      milan bauri 4 years ago

      Merijuana is really good staff.

    • aznpanda206 profile image
      Author

      aznpanda206 4 years ago from San Francisco

      ^ mad mother. I wrote this research paper back in college with references and I took out these references so that people can't steal my work an publish it as their own essay.

      Don't blame me or my article for your son's behavior. I'm just stating researched facts.

    • aznpanda206 profile image
      Author

      aznpanda206 4 years ago from San Francisco

      ^ mad mother. I wrote this research paper back in college with references and I took out these references so that people can't steal my work an publish it as their own essay.

      Don't blame me or my article for your son's behavior. I'm just stating researched facts.

    • profile image

      mad mother 4 years ago

      Seems to me the only POTENTIAL positive effects of smoking marijuana come if you are a cancer patient. Can you please reference your statements above. By reference I mean cite a scientific journal, article? Not just you heard it from one of your bodies or from some other "joe schmoe" on the internet where anyone is able to write anything without a bit of proof to what they say and people take it as gospel...like my son does who is addicted to marijuana (started there) and now has moved on the greater things and the life of an intelligent, once goal driven 15 year old kid is now going down the pot. So, please reference if you will the following statements: "The effects of smoking marijuana are not as damaging as smoking tobacco" and " This drug is considered to be harmless because it does not affect the brain stem and it mimics a neurotransmitter of the brain." Yes, it does act like a neurotransmitter in the brain and do you know what that is bad over time???? look it up in a real scientific journal. Also, please reference "Man-made drugs are a lot stronger and more harmful for the brain and body." Also, to make your article sound a little more professional you may want to reword this statement "Marijuana affects short term memory and it does not allow people to remember short term memories" you kind of state the same thing twice there...or maybe your short term memory was affected and you forgot what you just said?

    • Ashleymckinnon profile image

      Ashleymckinnon 5 years ago from Coleman, WI

      No problem :)

    • aznpanda206 profile image
      Author

      aznpanda206 5 years ago from San Francisco

      Thank you!! I will edit this "its'" when I get home! :)

    • Ashleymckinnon profile image

      Ashleymckinnon 5 years ago from Coleman, WI

      Wow, very thorough! Got a small pointer, in your title, you do not need an apostrophe after its. When it's possessive there is no apostrophe. Great research!