Can sensors help keep our roads in good shape? If the Earth is round, why aren't the people at the bottom standing upside down? How efficient is the human body? Why can't periods be controlled like going to the bathroom? Do animals have periods too? Where did water come from in the first place, and why doesn't it go off? Dr Chris Smith and Relebogile Mabotja have the answers. Like this podcast? Please help us by supporting the Naked Scientists

Should we take AI warnings seriously? Do fingernails and hair grow more quickly after they are cut? How does caffeine trick the brain into making us feel less tired? Are high levels of low-density lipoprotein a concern? What is mirror life, and should we be worried? What's the attraction of an electric vehicle? Why is it so excruciating when someone scratches their nails down a chalkboard? Dr Chris Smith and Clarence Ford have the answers. Like this podcast? Please help us by supporting the Naked Scientists

How might technology influence or manipulate the weather? Can aircraft affect the weather? Are we getting better at detecting cancer before it becomes problematic? How does perfect pitch work? And why does our hearing change with age? Does weight have any impact on tides? If medication can reduce HIV to an undetectable level, why is there still no cure? Dr Chris Smith and Saskia Falken have the answers. Like this podcast? Please help us by supporting the Naked Scientists

Why might the shingles vaccine help prevent heart attacks? Does an eclipse affect how we sleep? Why do farts seem to stick around longer in the shower? How does toothpaste fight acidity? Can you train your brain to notice different frequencies? How does the Moon affect the tides? And why is it so much harder to stand on one foot with your eyes closed? Dr Chris Smith and Clarence Ford have the answers. Like this podcast? Please help us by supporting the Naked Scientists

Have you ever wondered why eyebrows grow so slowly, or when you should brush your teeth in the morning? Can you tell the difference in sound between hot and cold water being poured? What causes those cold shivers down your spine? Is a spirit presence real? What controls how fast we move? Why do people mix oil with butter when cooking? And what's the best way to get vitamin D? Dr Chris Smith and Clarence Ford have the answers. Like this podcast? Please help us by supporting the Naked Scientists

What is the science behind love? What scares a honey badger? Are there mammals that feel no fear? How do car pistons move so smoothly even at high speeds? Should humans eat meat? Why do people with bone marrow cancer often show no symptoms? Chris Smith and Relebogile Mabotja answer the questions. Like this podcast? Please help us by supporting the Naked Scientists

How good are electric vehicle batteries? Why are EV fires so dangerous? What is acute flaccid myelitis? Why do people feel anxiety in different parts of their bodies? Why does our sight help with our balance? Are sons ever taller than their mums? Do flashing lights cause headaches? Dr Chris Smith and Clarence Ford have the answers. Like this podcast? Please help us by supporting the Naked Scientists

Are there technologies to remove smoke taint in wine affected by recent wildfires? What's the science behind itching? Can a tortoise survive 10 years locked up in a building? Why might an elderly dog or cat's behaviour change? Does microwaving damage food or reduce vitamin content? Can my blood pressure be affected by a jellyfish sting? Can we harvest energy from space? And is there a cure for neuropathy? Dr Chris Smith and Clarence Ford have the answers... Like this podcast? Please help us by supporting the Naked Scientists

How can algae microbots deliver drugs for bladder cancer? Why does a helium balloon fly backwards when you hit the brakes in a car? Does the Sun make ash? Will removing your gallbladder affect your cholesterol? Is there a symbiotic relationship between spiders and antelopes? Can cloud seeding affect rainfall? What causes restless legs? Why are global sperm counts dropping? And what holds the universe together? Dr Chris Smith and Clarence Ford have the answers... Like this podcast? Please help us by supporting the Naked Scientists

Dr Chris Smith and Clarence Ford return to answer your questions. Why do wombats produce cube-shaped droppings? Does sleeping position affect dreams? Can we predict penalty shootout winners? What do penalty statistics show about power vs placement? What are the pros and cons of statins? Is a cloned tree's DNA young or old? Why do golf balls have dimples? Could you outdrive Rory McIlroy on Mars? Like this podcast? Please help us by supporting the Naked Scientists