If there are two words that should not be connected, it’s heart and worm. The disease is as it sounds: worms living in the heart and surrounding blood vessels of affected pets.

While once considered the height of luxury, airplane travel has taken—to put it lightly—a serious nosedive over the past 30 years. Long gone are the days of comfortable seats, gourmet meals, and in-flight entertainment, traded in for cramped cabins where you’re lucky to snag so much as a bag of pretzels. (Alas, even the peanuts are long gone). And, unsurprisingly, those conditions can make even the most intrepid travelers go a little nuts.So, how do people cope these days? From bringing in their own booze to treating the plane like their own glam room, we’ve rounded up the rude, ridiculous, and downright crazy behaviors people do on airplanes. Keep these in mind as your personal list of travel don’ts the next time you're flying the friendly skies.

By Annie Tomlin, Women's Health

First of all: Not every mark is a mole. For thousands of years, humans have read meaning into moles. In ancient China and Greece, fortune-tellers divined futures by reading birthmarks. (One on your forehead? You're a power player! Is it on the back of your neck? Oh, sorry, you're going to be beheaded.)

Can what you eat help attention, focus, or hyperactivity? There's no clear scientific evidence that ADHD is caused by diet or nutritional problems. But certain foods may play at least some role in affecting symptoms in a small group of people, research suggests.