In any person's brain, alcohol kills brain cells that do not regenerate, but since teenage brains have not developed until the age of twenty five. Many important neurotransmitters and brain cells are killed along with the brain and central nervous system being depressed. The brain tissue contracts when it comes in contact with alcohol and it disrupts the communication between nerve cells by acting like a receptor so the neurotransmitter is not binding to a receptor that would allow it to have memory. If a neurotransmitter binds to a neuron and it sparks a positive reaction it is called an excitatory reaction and when the neurotransmitter binds with a neuron and it sparks a negative reaction it is called it an inhibitory reaction. Alcohol suppresses the excitatory nerve pathway but increases inhibitory nerve pathways which causes people to be sluggish. Alcohol affects the neurotransmitter GABA and glutamine which increases the amount of sluggishness even more. Since teenage brains are not fully developed, the effect of alcohol on the central nervous system is multiplied because the development of the brain is damaged more than a developed brain.
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