Ditch the supplements and sci-fi holograms

Science commentator Siouxsie Wiles joins Kathryn to talk about a review of major trials that shows healthy adults don't need to take calcium and vitamin D supplements. We're also one step closer to science-fiction type holograms, with the creation of a device that makes a 3D image that produces sound and responds to your touch. And it's World Antibiotic Awareness Week - what do we need to know?