What is a virus? How does it affect humans and how does it spread? Doctors, virologists and scientists examine the spread of the Zika virus, what effect this growing epidemic may have on large populations, and possible next steps to stop the illness.
In this programme, Drs Chris and Xand van Tulleken discover the everyday miracles that keep you alive. They explore the extraordinary lengths our bodies go to in order to keep our organs working at every moment of every day.
Growing up in the streets of Dundee, actor Brian Cox was surrounded by tobacco. His entire family either smoked it or chewed it and yet Brian reveals, he never took up the habit. To find out why not, Brian travels to Virginia in the US to discover how the habit of smoking kick-started the British Empire and created a global market of addicts.
Gloria and Chris settle the argument over whether tea and coffee are good or bad for us - and if the same is true for both. There is also the truth about a food often touted as a way to fight cancer. And, after reports suggesting reusing plastic water bottles is a bad idea, tests reveal if we should be using a fresh one every time.
The series offers a fresh look at the science behind teeth and dentistry, and what we can all do to improve our oral health. The programmes feature patients undergoing treatment for missing or broken teeth, decay, gum disease, and a range of other problems – sometimes to the extreme. The series also features a strong public health message, with experiments on and information about everything from correct tooth brushing to the effectiveness (or otherwise) of over-the-counter tooth whitening kits.