What If You Held in All Your Sneezes?

They show up uninvited. They shake your whole body. And they can travel up to 160 kilometers (100 miles) an hour. When you sneeze, all the muscles in your body react...

What If We No Longer Needed Sleep?

Our world is sleep-deprived. In the last century, people slept an average of nine hours per night. Today, more than half the world’s population gets by on less...