Can deep sleep help stop dementia?

Arranging your fridge isn't just a way to save space. It's primarily about ensuring optimal preservation of food products and thus preventing the proliferation of bacteria. According to UK Research and Innovation, there are around 2.4 million cases of foodborne illness in the cou ...  Show more

On paper, fish have everything required to be an excellent staple to many diets. They’re rich in protein, vitamins, trace elements, long-chain omega-3 fatty acids, and aren’t too high in calories. The only downside is that fish live in an increasingly polluted environment. What w ...  Show more

Andrea Sella, Professor of Inorganic Chemistry at University College London, celebrates the art and science of the chemical elements. Today he looks at helium. Helium is a finite resource here on Earth and many branches of science need it. Doctors need it to run MRI machines to d ...  Show more

Helium is full of contradictions. It’s the second most abundant element in the universe, but is relatively rare on Earth. It’s non-reactive, totally inert—yet the most valuable helium isotope is sourced from thermonuclear warheads. And even though we treat it as a disposable gas, ...  Show more

Encore episode. Helium is the second-most common element in the cosmos, but it's far rarer on planet Earth. As part of our celebration of the periodic table's 150th birthday, correspondent Geoff Brumfiel shares a brief history of helium's ascent, to become a crucial part of rocke ...  Show more

Helium is the only truly non-renewable resource, and it's essential for things like MRI machines and nuclear reactors, but should we be worried? And, we turn air into food, so why can’t we get carbon to leave the atmosphere – or helium to stay? In this episode, Cosmos Science Jou ...  Show more