You probably don’t have a tapeworm. But you’re likely sleeping too little, spending too much time on Instagram, and doing a bunch of other things that make you so freaking hungry, all the freaking time.

Smoking can cause at least 15 different types of cancer. And nearly 9 out of 10 lung cancers are from puffing away on cigarettes. Burn those two facts into your head if you haven't yet quit. Then read on to learn what else affects your risk.

Passing gas up to 20 times a day is completely normal. When your farts get more frequent, though, it could mean something else.