Zika immunity and falling body temperatures

Have these paralysed patients helped to reveal the brain basis of why we gesticulate when we talk? Also, new insights into how the body clock keeps track of the seasons, signs that immunity to Zika virus wanes with time, why human body temperature is lower than it was 150 years ago, and diversity in science: how can we better hold on to rare talent? Get the references and the transcripts for this programme from the Naked Scientists website