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The effects of drugs on the human brain

The human brain is made up of many nerve cells which are called neurons that receive as well as transmits messages to and from every other part of the body. They are just like a huge switch board. The Central Nervous System is made up of a long bundle of nerve cells which is called the Spinal Cord along with the Brain. It is through the neurotransmitters that messages cross from one nerve cell to the other and the rate of release and uptake affects the personality of a human. When a person begins to take drugs, there are various effects on the brain that can prove to be very detrimental.

The effects of stimulant and depressant drugs

Drugs like Cocaine and Amphetamines are called stimulant drugs and they have a bigger impact on the release of the neurotransmitters, producing more wakefulness and a mood that is altered radically. These stimulant drugs are also called ‘Speed’. On the other hand Heroin and alcohol are known as depressant drugs which work on the mood and personality. The repeated use of such drugs can lead to tolerance because the body gets adjusted to the amount of chemicals that it produces. More the drug is in-taken for desired effect, more prone the user gets to depending on it.

Effects of Hallucinogenic and Dual Action Drugs

Drugs like LSD and Magic Mushrooms are known as Hallucinogenic drugs which affect those areas of the brain that control the pattern of though and perception of sensory nerves. They alter the way in which messages are interpreted after being received and they lead to a change in mood and personality. On the other hand there are some drugs like Meth or Ecstasy which belong to the family of compounds that are synthetic and are related to the amphetamines. They are known to be stimulant and works on the brain just like LSD making the user feel ecstatic and increasing their sympathetic feelings towards others. These drugs are referred to as Dual Action Drugs.
All drugs that are abused over load the body which means they cause the reward system of the body to feel good signals. They try to put the balance right by letting fewer of these signals through so that the body begins to need more of the drug to feel high. This effect is called tolerance. A person on drugs has very low levels of Dopamine when he stops taking it and is unable to feel the pleasures of life, making him feel depressed and low. It is this impulse to seek pleasure without considering the consequences that hooks people to drugs. Teens are most vulnerable when it comes to drug abuse because their internal reward system is still getting developed. So the ability of a teen to bounce back to normal life after having abused drugs can be compromised because of how drugs can affect the brain. These psycho active substances called drugs can damage the teen brain to a large extent.

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