Is the coronavirus crisis giving you bad dreams? Anxiety and stress about covid-19 has changed our sleeping patterns and the tone of our dreams. But rest assured, bad dreams and nightmares are just a sign of the brain doing its job. In this episode, special guest Matthew Walker, professor of neuroscience and psychology at the University of California and best-selling author of ‘Why We Sleep’, shares top tips for sleeping well, and gives advice for people experiencing bad dreams. In the pod this week are New Scientist journalists Rowan Hooper, Penny Sarchet, and New Scientist consultant Michael Brooks. They take a mind-bending look at what happened when mathematicians decided to try and explain consciousness, and the controversy over what consciousness actually is.They also discuss a robot that has been constructed using the spine of a rat and 3D-printed muscle, explore how brain stimulation could be used to treat severe anorexia, and they lift a glass to research that suggests drunken elephants do in fact go on a rampage! Our GDPR privacy policy was updated on August 8, 2022. Visit acast.com/privacy for more information.