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Ask the Naked Scientists — Life Sciences
Ask the Naked Scientists

How many organs could you donate and remain alive? How many planet Earths could fit inside the Sun? How high is a giraffe’s blood pressure? Why is the sea blue? To find out, Ask The Naked Scientists!

Copyright: © The Naked Scientists

Latest Episodes:

Why do we get floaters in our eyes? Oct 09, 2026

Show notes

Who scooped Nobel Prizes at this year's ceremony in Stockholm? How concerned should we be about AI's impact on society? Why do men have larger Adam's apples? How can we make sure we eat a balanced diet? What causes floaters in your eyes? Is the expanding Universe contracting elsewhere? And is there a new fluoride-free toothpaste gel that rebuilds teeth? Dr Chris Smith and Saskia Falken have the answers. Like this podcast? Please help us by supporting the Naked Scientists

Do giraffes have the same number of neck bones as humans? Oct 02, 2026

Show notes

Dr Chris Smith and Relebogile Mabotja explore why it's hard to reach a human in customer service. How did humans migrate from Africa, and can we trace our ancient paths? Why do people and animals have different neck sizes? Can you really hear your heartbeat when your head's on the pillow? Why is swimming in cold water easier than taking a cold shower? Why do your ears block when you yawn or blow your nose? Why don't you notice yourself growing? Like this podcast? Please help us by supporting the Naked Scientists

Can curly hair straighten with age? Sep 25, 2026

Show notes

Dr Chris Smith and Clarence Ford discuss the world's hottest creature, why antimatter matters, whether weight-loss pills can cause blindness, and why some birds die when they fly into power cables while others can perch on them with impunity. Then, what are the risks of AI, can curly hair straighten out as we age, and how does hair colour change as we grow up? Plus, whether insects are a good source of protein. Like this podcast? Please help us by supporting the Naked Scientists

Where did water come from, and why doesn't it go off? Sep 18, 2026

Show notes

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

Is AI at risk of going rogue? Sep 11, 2026

Show notes

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

Can technology influence the weather? Sep 04, 2026

Show notes

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

How does the Moon affect the tides? Aug 28, 2026

Show notes

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

Why do eyebrows grow so slowly? Aug 21, 2026

Show notes

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 love? Aug 14, 2026

Show notes

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

What is the life of an electric vehicle battery? Aug 07, 2026

Show notes

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

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