system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: What is it about alcohol that makes me be more social and talk to people.

I consider myself to be a person that keeps to myself most of the time are rarely talks to people about how I feel but when I drink and suddenly gain the ability to socialise with people and tell people how I'm really feeling? What is happening when that happens and there is away to be like that without alcohol?
gpt
The brain is made of neurons. Neurons talk to each other by sending chemicals. One of these chemicals is called GABA; of the dozen or so major chemicals used in the brain, GABA is one of the major inhibitors - it causes things to slow down. Ethanol (the alcohol in drinks) makes the chemical receivers for GABA more sensitive, meaning the brain is inhibited overall (CNS depressant). GABA hits hardest on parts of the brain responsible for memory, logical thinking, and muscle coordination; it's the second one that allows you to be more impulsive and talk to people without overanalyzing or being afraid.