When you want to make a lighthearted statement about grinning, these smile sayings strike just the right chord. Smiling is a universal language, so it's no surprise that there are a ton of well-known ...

Do you believe you have hawk eyes? Have you ever considered having a somewhat higher IQ and a keener sense of perception? Our brains can interpret images in just 13 milliseconds. The beautiful thing ...

NPR's Ayesha Rascoe speaks to Sebastian Korb, a senior lecturer in psychology at the University of Essex, about a new study showing that even forcing a smile can improve a person's mood.