That unusual bend in your thumb isn't a cool party trick. Discover what hitchhiker's thumb might reveal about your health and ...

We'll use a car in our example below.) You just need that guess, your thumb, and the ability to multiply by 10. Here’s how it works: Hold your thumb in front of you (with your arm fully ...

Which one describes you best? Holding your phone with one hand and using the thumb of the same hand Holding your phone with both hands and using the thumb of one hand Holding your phone with both ...