If you are an office worker, here's a fun fact: you'll spend FIVE YEARS of your life sitting at a desk once you start the 9-5 grind.

That means you're spending about five hours a day sitting at your desk, barely moving. That's 24 hours a week, 45 days a year. That's directly related to the 14 pounds people gain after joining the working world.

Not only do office workers spend their workday sitting, they tend to sit through their lunch at the desk, too.

Another downside to the sedentary workday is having no energy after work to go out and be active.