system
Given the following post, respond as if you're commenting on Reddit:
human
What does alcohol do to your brain to lower inhibitions?
gpt
Alcohol jacks up the amount of norepinephrine present in the brain; this neurotransmitter acts as a stimulant. Elevated levels of norepinephrine increase arousal and excitement, and can lower your inhibitions and increase impulsivity, making it hard for you to consider potential consequences of your actions.

Alcohol also decreases some of the activity of the prefrontal cortex. This part of the brain is what helps you to think clearly and rationally, and it is involved in your decision making abilities. The prefrontal cortex part of the brain is partly responsible for your sense of control over your emotions and behaviors, impacting willpower and even aggressive thoughts and actions. When you drink, alcohol makes it harder for the prefrontal cortex to work as it should, disrupting decision-making and rational thought. In this way, alcohol prompts you to act without thinking about your actions.