Jetlag and Body clocks - a podcast by Dr Chris Smith

Can we re-set our body clocks? How can we ease the effects of jetlag? Do body clocks change with age? We look into these questions in this week's show as well as investigate whether lightning can occur without clouds, the effects of head injuries, why spacecrafts need to travel at high speeds and we discuss the optimum world population. Like this podcast? Please help us by supporting the Naked Scientists

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