Why don’t we fall out of bed when we’re aslee...

CrowdScience listener Namrata and presenter Chhavi Sachdev have something in common. They both get more tanned in the summer in the United States than back home in India. Namrata wants to know why she came back from her run in Boston with such a deep tan and doesn’t have the same ...  Show more

There’s something fishy going on in the Czech Republic, where CrowdScience listener Ian lives. He keeps tropical fish, and he’s noticed that when he adds new ones to his tank, they swim with others of the same breed. He wants to know how they recognise each other. Do they know wh ...  Show more

Guest presented by Liz Bonnin.We all instinctively know that sleep is incredibly important but science doesn’t actually have a satisfying answer for why we need to sleep. There are multiple theories, but now, new research from Imperial College London has suggested that the leadin ...  Show more

Why do we sleep and why do we dream? Despite the fact that every human being spends roughly 1/3 of his or her life asleep, science has yet to crack the mystery of the phenomenon. Why do we sleep and dream? The answer for now is...we don't know. To learn more, we interview psyc ...

Adventures in Dreamland "Why do we dream and why do we repeat dreams?" asks Mila O'Dea, aged 9, from Panama.Hannah Fry and Adam Rutherford delve into the science of sleep. From a pioneering experiment on rapid eye movement sleep, to a brand new 'dream signature' found in the brai ...  Show more

Why do we sleep? What exactly happens when we sleep and why is it so important? What are the implications of sleep deprivation? And what can we do to improve our sleep hygiene? Answering these questions is the life’s work Dr. Matthew Walker. Longtime listeners know that I am obse ...  Show more