Sabine Doebel: How your brain's executive function works -- and how to improve it

You use your brain's executive function every day — it's how you do things like pay attention, plan ahead and control impulses. Can you improve it to change for the better? With highlights from her research on child development, cognitive scientist Sabine Doebel explores the factors that affect executive function — and how you can use it to break bad habits and achieve your goals.