Describe & evaluate the effects of 2 drugs on the functioning of Essay

Describe & prise the effects of 2 do mediciness on the functioning of neurotransmitters - Essay ExampleIt is four times stronger, than morphine. But the feeling, to which drug addicts strive, is just a side effect for medicine. This side effect is displayed through better mood euphoria, come with by the feeling of indifference to the environment, drowsiness, feeling of warmth, heaviness and relaxation in body and extremities.Heroin is the warmth, loving warmth, which seems to be growing out of your body. At first it seems you are pregnant with this warmth, it is like a pinnace life under your skin, and this live warmth fills your body with heaviness, the wish to move disappears together with all different wishes, the only wish is to lay and listen to this warmth (Carnwath 2002, p. 23)Fast and powerful effect of heroin on the dying(p) system is connected with the fact that it cut throughs to it easier, than other drugs do. The thing is, that nature has created a special br eastwork for the protection of the main human organ mental capacity, and this barrier allows far not all substances to reach the nervous cells (in medicine this barrier is called blood-brain barrier).The structure of heroins molecule allows it to easily penetrate though this blood-brain barrier and quickly accumulate in brain. As soon as heroin appears in the brain, it as if throws down its capsule and turns into morphine. It appears that the main difference of heroin from morphine is in its transport capsule, which allows it to instantly penetrate into the nervous system, causing the abundance of electromagnetic impulses. (Carnwath 2002, p. 49)The thing is that some parts of heroins molecules are similar to those of natural substances, produced by the nervous system the so-called endorphins. In the normally working brain such substances work as delicate regulators of emotional and intellectual human activity. The content of these substances in the drug is much higher, than the n ervous system needs for normal activity. And the main thing is that it is