Why do Men's Bits Shrink in the Cold?

Coming up, health agencies grapple with a Salmonella outbreak across Europe. What's behind it? Also, astronomers spot the fastest-moving star in the Milky Way, hurtling around the supermassive black hole at the heart of the galaxy; regulators in the United States have followed Eu ...  Show more

We have partnered with UK Research and Innovation to study wounds and their impact on healthcare. What challenges do wounds create, and how can we treat them? This episode features Mat Hardman at the Wound Innovation Institute; Ketan Dhatariya at the Association of British Clinic ...  Show more

On today’s episode: How have COVID vaccines had lasting impact on menstrual cycles? Video games; do they rot your brain, or enhance it? What is the biological reason that women live longer than men? And how can sound help us understand protein folding? All that and more today ...

At Christmas, is there a better gift than knowledge? CrowdScience has cooked up its own version of 'secret Santa', with members of the team setting one another the challenge of answering surprising questions from all over the world.

Are humans the only animals to exerci ...

What's going on with microbes? What happens when an astronaut sneezes in space? Why do we have toes? Should I dress fancier? Why aren’t there drones on Mars? Do you get lighter every time you fart? What do I do about the poster I don’t understand? Why do animals live for differen ...  Show more

Chris Smith and The Naked Scientists tackle the science questions you've been sending in, including why the universe is expanding and how fast is it doing it; is fat worse than sugar; and can you really die of a broken heart?