No, he really meant that. You see, vision is directly linked to your digestive system. I'll expliain.



When you look at something, pipes behind your eyes carry the stuff you see down to an area near your stomach where the stuff you see is turned into liquid (it can't be inside your head because there isn't enough room). The liquid then gets carried into your brain and flows through it which allows you to see stuff. The left over liquid is evaportated in stomach acid and exhaled through the nose (not the mouth). The thing is, when the liquid is being evaporated, some of it mixes with what is in your stomach. Normally it won't do anything, but in some cases it will upset the stomach, usually if you looked at something you would rather not have looked at if you had the choice. In very bad cases, it will cause you to throw up.





NOTE: This is a complete lie. Only an idiot would think this is true. Are you an idiot? Thought so. Just kidding :P