Why do we yawn?

Loading player...
Are mouth bugs nastier than bowel bugs? How would wiping out mosquitoes affect the food-web? What is an itch? Are anaesthetics a risk factor for blood clots? What are trans-fats and invert sugars? Can parasites manipulate our behaviour? Are there any benefits of yawning? Plus, news of the genetically-modified mosquito that might help to eradicate malaria...
13 Jun 2014 English United Kingdom Science

Other recent episodes

Do dogs dream?

Do dogs dream? Can someone who was born blind dream? Do animals have souls? Do certain eye colours have more advantages than others in terms of sight? What is blind sight? What are growing pains? Is it unhealthy to sleep with closed windows? And what is some advice for sleepwalkers?…
17 Apr 22 min

What caused the craters on the Moon?

How does the heat shield protect the Artemis II astronauts on their return to Earth? What caused the craters on the Moon? Can the materials in cooking pots cause poisoning? What is seasickness? Can space missions take place during periods of high solar activity? And what propels spacecraft? Dr Chris…
10 Apr 22 min

What colour is a mirror?

Why some people can't say their Rs; why is perception of time so context dependent; what's the nutritional value of long life milk; what determines how tall we are; why do some mirrors make you look a strange shape; why to take care with magnesium supplements to avoid explosive diarrhoea;…
27 Mar 21 min

Do we all see colours the same way?

On this week's show, why dogs don't live as long as humans. Also, why do we feel cold when our skin is warm to the touch? Do we all see colours the same way? Do animals experience embarrassment? If photons head towards two small slits, do they only pass through…
13 Mar 23 min

Can white skin transplanted to a black person change colour?

This week Clarence Ford and Dr Chris discuss NASA's DART mission to defect an asteroid, why we can't tickle ourselves, whether lung capacity affects the heart, if white skin transplanted to a black person changes colour, why some people are more ticklish than others, how scientists are able to read…
6 Mar 22 min