We are constantly bombarded with "clickbait" headlines making all sorts of scientific claims. Unfortunately, if it sounds too good to be true, or too crazy to believe, it probably is. Although it may seem that these headlines are harmless, they actually can carry some pretty heavy consequences for our health, actions, and decision-making. How do you know if a claim is true? Let's take a look at four headlines from different news agencies and examine the claims, evidence and science behind th