The Sweet Spot....How Many Cups of Coffee You Should Drink in a Day

It's not exactly breaking news that coffee helps you stay alert. But how much coffee gets you to the right level of alert . . . without going TOO far or not far enough?

A new study out of Portugal found the exact number of cups of coffee you should drink in a day is . . . FIVE.

That's the point where you'll be the most alert . . . and also, your memory will be better and you'll learn stuff faster. So start throwing 'em back. 

(Study Finds)

(Photo: Getty Images, LightFieldStudios/iStock)