This Is What Happens To Your Body When You Don't Exercise
Exercise may not always feel like something you're meant to do, but humans weren't born to be couch potatoes — at least from an evolutionary perspective. Our ancestors constantly moved around for food and shelter, according to History. Fast forward to the 21st century where the average human isn't running after bisons or traveling every couple of days. While humans have evolved into a sedentary lifestyle, our bodies haven't... More here.
Worth a read.