Something about alcohol being a vasodilatador. When you don’t have it anymore the floodgates are wide open and thats a problem. I think your brain gets used to constantly running on a limited/expected amount of blood flowing through it and when the alcohol stops, your brain gets flooded with blood and side effects of that swelling are what cause real issues. I’m no rocket scientist tho.
Imagine driving around in your car with the handbrake on for months. You get used to it. Then one day, someone reaches in and takes the handbrake off without you knowing. You go to take off, jam the pedal down like you always do, and slam uncontrolled at 90mph into the traffic barriers at the other end of the carpark.
I drank heavily on a daily basis for about 6 years. I quit without doing any detox program, with no issues. In case there’s anyone here worried about quitting because they always hear about how ‘quitting alcohol can kill you’, be aware that is not the case for everyone, and see a doctor about it anyway.
If you’re drunk for lot of consecutive days your body/brain floods your bloodstream with adrenaline and cortisol basically to keep you alive because the alcohol is slowing down your heart and other systems. When you stop it takes several days for the brain to realize it can cut back production of adrenaline and cortisol to normal levels. This is major contributor to people shaking, heart racing , sweating and not being able to sleep., high blood pressure.
Other people explained the rest pretty well but I figured I’d mention that.
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