How do I know if my baby is waking up at night because he's hungry?

How do I know if my baby is waking up at night because he's hungry?

Gary Feldman (Medical Director, Stramski Disorders Center, Miller Children's Hospital ) gives expert video advice on: Should I nurse my baby whenever he cries at night?; How do I know if my baby is waking up at night because he's hungry?; Should I put my baby on a nursing schedule to help him sleep at night? and more...