How does the body stay alive? And what does ageing really mean, from the inside ? Biomedical scientist and Professor of Vaccine Immunology at Imperial College London John Tregoning reveals the science of staying alive, ageing, and death. Journeying from the nature of genes to the science of inflammation, from today's anti-ageing craze to real health foods and the evolving landscape of diagnostic care, John reveals how we can lead healthier, better-informed lives.

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