Why do coffee drinkers feel more clear headed after consuming caffeine? Why do some get a headache without it? Does caffeine cause any permanent brain changes and can the brain go back to ‘normal’ after years of caffeine use?
In: Biology
Short answer for the first two is addiction and their body isnt used to functioning without caffeine.
Whether or not it causes a permanent change is a good question I’m not sure the answer to but I dont think thered be any drastic or permanent changes so after some time off caffeine the body would adjust back to “normal”, I wouldnt even imagine it would take years to be honest, a couple weeks or months maybe. Since caffeines water soluable I wouldnt expect it to be stored in the body and build up plus the metabolic half life of caffeine is like 2-6 hours so it doesnt take too long for it to end up getting through the system and removed from the body. Once the withdrawal symptoms (tiredness, irritability, headaches, etc.) were no longer present I’d say the person would be more or less back to “normal”.
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