Biomedicine, Cell Biology, Neuroscience|September 26, 2011 1:25 pm

The use of drugs and their effect on brain function

The article presents the effects of the drug nicotine, heroin, cocaine and ecstasy on the human brain, showing the health consequences.

It is generally known that drugs affect the human body adversely. Concepts such as dependency and withdrawal symptoms are no strangers. But what exactly drugs cause in our brain? Because drugs are substances that mental functions such as states of mind or emotions in the brain may affect substantially.

use drugs

Which drugs can be distinguished:

Similar drug substances are also formed by the brain itself. Even in medicine are drugs, for example, used to relieve pain. The application field is however much more extensive. The best known, however, is the so-called abuse of illegal drugs such as opiates (cocaine, amphetamines), cannabis (hemp), hallucinogens (mescaline, LSD) and empathogen substances (ECSTASY).
Since the different types of drugs include various drugs, including their effect on the brain is different.

The effect of nicotine on the brain:

The best known, and by the state through the collection of taxes, legitimate drug is nicotine, although it:

* it reaches the brain within 10 seconds
* there one type of receptor binds acetylcholine, the transmitter
* The key function of the natural neurotransmitter copied

As a result, there is a greater stimulant of the receptor, in contrast to the natural neurotransmitter. In addition, nicotine binds only one specific type of receptor, resulting in an unbalanced and biased amplification effect. The natural neurotransmitter binds, in contrast, different receptor types.

The addiction is caused by the much higher efficiency and the flooding of the type of receptor to which nicotine is downleader. Followed by a familiarization with the dose increased by increasing the body demands more. Addiction is a result of consumption growth.

The effect of heroin on the brain:

The morphine was named after the god of dreams and sleep, Morpheus. By chemical modifications, it is processed to the known drug heroin. As can be deduced, therefore, this substance makes you sleepy and relaxed consumers.

In the area of ​​the drug is used medically to relieve very severe pain. The patient is treated with the pain still was, but he is by the brain only rated as marginal and fined. This is dangerous but that morphine acts directly inhibiting the respiratory center in the brainstem. The result is a slowing of breathing frequency. In an overdose, it is usually a respiratory arrest followed by suffocation of narcotics users.

Morphine reaches its broad impact in that it can simulate a number of different neurotransmitters by means of its ingredients. It transmitter substances such as endorphin, enkephalin and dynorphin similar strong enough to occupy the corresponding synapses. It blocks the contact points of natural messengers. And this consequently leads to a reduction of physical pain threshold.


Cocaine and its effects on the brain:

Through the use of cocaine you get that feeling of having no hunger and no more and more tired. Unlike the aforementioned types of drugs that works derived from the coca bush cocaine indirectly on the brain and its functioning mechanisms.

It does not block the synapses before the natural neurotransmitter (norepinephrine) but whose whereabouts of those. It simply extends the time. However, it is not only the time is extended, cocaine increases the concentration of endogenous transmitter substance noradrenaline. This affects those out to areas of the brain, which are controlled in important bodily functions, such as the increase in heart rate and blood pressure. A high risk of stroke is the result.

Ecstasy also is not harmless!

A fourth transmitter system, serotonin is affected by the addictive drug Ecstasy. Ecstasy, belonging to the hallucinogens, in the brain causes a feeling of disembodiment on the one hand, on the other hand, an overwhelming feeling euphoric.

Ecstasy causes the body to serotonin, a huge payout, resulting in brain to a veritable flood. However, this has implications for human metabolism and temperature regulation system. Furthermore, the use of ecstasy leads to hyperactivity with an enormous urge to move. Therefore, it is also known as a party drug. The repeated use of ecstasy leads to the death on the duration of certain groups of neurons that form a connection from the brain stem to higher brain regions. This is likely to have a significant impact on basic brain functions such as sleep.

Due to the long-term use of ecstasy in the brain but it is also a depletion of serotonin stores, which can result in depression, and then up to the suicide of drug users.

Many connections are still open:

The brain is a very special function mechanism of biological, chemical and electrical processes that can interfere with the drug in different ways. The ecstasy through the increased distribution to the exhaustion of a transmitter stock that cocaine increases the binding of endogenous substances and duration of both nicotine and morphine, and copy simulate certain natural compounds as neurotransmitters.

The full extent of the effects on the brain and the entire human body is also still not known. Parts of the research are very concerned with the identification of correlations between the self and the physical consequences of taking or changes.

In summary, it can be said that the result of taking drugs over a period of time not only to physical and psychological dependence, but also more far-reaching negative effects on the body and has in most cases, unhealthy and life-shortening effects.