Individuals with ADHD have a biological mixup that causes their brain to react to stimulants differently than the “normal” brain. Not sure of the exact chemical reaction, but for those with ADHD, the neurons in the brain are typically firing as if the person was already using a stimulant and when they do use a stimulant it sort of slows and focus that energy because of the way the brain reacts to it.
Source: Niece and nephew have ADHD and this is sort of how the doctor explain it to us when they were living with us.
Your brain produces chemicals which attach to sites on neurons (brain nerves). They are a certain “shape” like plugging a round peg into a round hole. (NOT really but you get the gist).
When a normal person drinks a high caffeine energy drink, all of these round pegs plug into all of the round holes and cause an increase of transmission from one neuron to another.
But it’s not perfect. Sure it fits into the hole, but since it’s artificial, they don’t transmit as efficiently as a natural round peg would.
By placing inefficient round pegs in an a brain that overproduces natural round pegs, it actually slows the transmission of signals down.
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