Is time travel possible? - a podcast by Dr Chris Smith

This week, how blood transfusions from individuals who exercise could take decades off the brain ages of recipients, the toenails that refuse to grow, what causes giddiness, do we need to Earth ourselves to tackle unhealthy charge imbalances, and can air purifiers use UV to remove infectious diseases? Join 567 CapeTalk's Kieno Kammies and Dr Chris Smith for the answers... Like this podcast? Please help us by supporting the Naked Scientists

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