Is caffeine Good or Bad for you?
Almost all of us drink caffeine daily in either tea or coffee...
In the UK we drink 70 million cups of coffee day!
But what is caffeine doing to you?
How much is too much?
And is it good or bad for you?
Dr Michael Mosley explains how much you're drinking and why caffeine gives you such a boost.
And why some coffee drinkers may be more healthy and live longer than those that don't drink it.
From the BBC's Brit Lab.
Just click on the 2 minute video below.
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