ORLANDO, Fla. -

How many times a day do you click the mouse at your computer?

Keep clicking -- because it turns out that you could be burning hundreds of calories a day.

That's according to a new study out of Japan.

Researchers say that every time you click your mouse, you burn 1.4 calories, on average.

Doctors came up with that number by studying the average amount of energy and force that's used when you use your mouse.

Now, here's the bad news...

The study also finds that to burn off the number of calories in a Big Mac, you need to click your mouse 350,000 times.