The questions keep coming for Dr Chris. This week they include: have scientists got their hands on the oldest ice ever studied? Does putting the air conditioning on too high or low make you ill? What factors contribute to chronic mental illness? How do you reduce puffiness under the eyes? Can cold weather make healed operation sites sore again? Like this podcast? Please help us by supporting the Naked Scientists

Laurie writes in, wanting to know whether the nuclear reactions which power Mars rovers means small nuclear reactors could power our towns and cities. Diving into this atomic adventure, James Tytko sought help from research associate at the energy policy group at Cambridge University, Simon Taylor... Like this podcast? Please help us by supporting the Naked Scientists

In this edition of The Naked Scientists: Scientists get their hands on the oldest ice on Earth, and we've been to see it, but what's it going to reveal? Also, measles is on the up, again; we find out why. And, is humour genetic? We talk to the scientist who has studied hundreds of pairs of twins to find out! Like this podcast? Please help us by supporting the Naked Scientists

In this edition of The Naked Scientists, we look at 25 years of the Human Genome Project. What is it? And what has it achieved? Like this podcast? Please help us by supporting the Naked Scientists

In this episode of Ask! Dr Chris is asked: what is ivermectin? Are sodium ion batteries a rival to lithium? Is the Earth spinning slightly faster? Why do we warn against using phones around petrol stations? Like this podcast? Please help us by supporting the Naked Scientists

Leonard is asking how one acquires Lyme disease, and how doctors diagnose it. James Tytko asked Jack Lambert, Professor and Consultant in Infectious Diseases at Mater Misericordiae University Hospital, for help to find an answer. Like this podcast? Please help us by supporting the Naked Scientists

This week, the cells that vanish when we slim down: are these the link between obesity and health problems like diabetes? Also, the bacteria that might be able to shield us from the "forever chemicals" we're all eating. Plus, why will 3 days over the next month be a millisecond shorter than they should be? Like this podcast? Please help us by supporting the Naked Scientists

As the global population heads toward 10 billion, the pressure on agriculture is mounting. With that in mind, the UK's Advanced Research and Invention Agency (ARIA) has announced millions of pounds worth of funding for crops enhanced through synthetic biology by designing entirely new chromosomes and chloroplasts, starting with the potato, as Angie Burnett, the ARIA Programme Director and plant biologist leading this initiative explains to Marushka Soobben... Like this podcast? Please help us by supporting the Naked Scientists

In this edition of The Naked Scientists, we pay a visit to Cambridge University Botanic Garden to ask 'can genetics help grow a better garden?' Like this podcast? Please help us by supporting the Naked Scientists

In the news, counting the calories: The UK government want shops to help us put 100 fewer calories in our baskets to beat obesity. So will it work? Also, archaeologists uncover the world's oldest fat factory - it turns out that Neanderthals were processing bones for their grease 125,000 years ago, but why? And on Mars the Curiosity rover captures close-up images of spiderweb-like patterns on the planet surface, but what made them? Listeners are also wondering whether green initiatives really do help to save the planet... Like this podcast? Please help us by supporting the Naked Scientists