DNA repair is essential for cell vitality, cell survival and cancer prevention, yet cells’ ability to patch up damaged DNA declines with age for reasons not fully understood. Now, new medical research is revealing exactly what and why cells mend and heal broken DNA, and how this could potentially lead to dealing with the effects of ageing on the human body. Steve and Ben discuss the human fight against ageing, why we are so concerned with this question, and whether or not it is a good idea for humans to strive for immortality.

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