Here's why it's a bad idea to drink too much coffee:
Jasmine Willis, 17, developed a fever and began hyperventilating after drinking seven double espressos while working at her family's sandwich shop.
The student, of Stanley, County Durham, was taken to the University Hospital of North Durham, where doctors confirmed she had overdosed on caffeine.
She has since made a full recovery and is now warning others about the dangers of excessive coffee drinking.
Link - via Blue's News