Geelong Medical & Health Group News

How Much Caffeine Is Too Much?

January 6 2018

And which is healthiest: coffee, tea, or some other caffeine source? Caffeine is one of the world’s most popular drugs. Once inside your body, it blocks brain receptors for adenosine, a molecule associated with tiredness. Over time, however, the brain chemistry of coffee drinkers changes, triggering production of more adenosine receptors. The result is a...

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