There's a scientific reason behind your "second stomach." Become a Video Lab member! http://bit.ly/video-lab How is it that, after stuffing ourselves full at dinner, we somehow find room to eat again once dessert comes around? Turns out, the thing that makes us do this has a name: It's called "sensory-specific satiety," and it's actually supposed to keep us healthy. Vox.com is a news website that helps you cut through the noise and understand what's really driving the events in the headlines. Check out http://www.vox.com/. Watch our full video catalog: http://goo.gl/IZONyE Follow Vox on Facebook: http://goo.gl/U2g06o Or Twitter: http://goo.gl/XFrZ5H