Coffee, Green Tea & Hot Water

I’m just reading yet another article about the relative benefits of tea or coffee as a pick-me-up or to prevent cognitive decline in old age.

I’d suggest the reason that there are so many contradictory results from the large number of studies conducted annually is pretty simple:

The positive effects found are nothing to do with the tea or coffee.  They are the result of hot water hitting the roof of our mouths, prompting dilation of some of the blood vessels in the brain, most likely including those upon whose blood supply consciousness depends.

It’s why coffee wakes us up in the morning. The caffeine may have a mild stimulant effect later, but it’s the heat at work first thing.

 

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~ by funnyinthehead on February 12, 2013.

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