I'm trying to find an explanation for why people who drink caffeinated coffee have a much lower risk of dementia than people who drink decaffeinated coffee.
Could be the case caffeine actually gets you addicted to bitter taste, instead of just indicating people with bitter taste preference, Pavlov style? Coffee is bitter, coffee is addictive. Perhaps this addiction to bitterness transfer to other foodstuff (vegetables). Decaffeinated coffee wouldn't allow the same transfer, by lack of the addictive ingredient.
