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The Guardian - UK
The Guardian - UK
Science

Want to stay strong as you get older? Maybe you should have another cuppa

Caffeine
A close-up of an older person's hand holding cup of coffee
Next stop, weight training … Photograph: MASTER/Getty Images

Name: Caffeine.

Age: Let’s say 1,173 years, because the nicest story about its discovery involves an Ethiopian goatherd named Kaldi who, circa 850, noticed increased activity in his goats after they had eaten coffee beans.

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