How to think positively and why it's so hard to do that

Our brains are wired so that when a situation is framed as something bad, it's "stickier" in our minds than if it's presented in a positive light. If you see a glass as half empty, it's really really hard to start thinking about it as half-full. That was very beneficial to our evolutionary ancestors but not so much today, although politicians and marketers take advantage of this all the time to manipulate us. UC Davis behavioral scientist Alison Ledgerwood studies the power of framing, and how we can learn to see the bright side of things.