Connected cousins, genetics, ancestry, e-cigarettes

<p>Our guest today has a remarkable story. She's researched cousins marrying, the geographic dispersal of families...and worked in a New Delhi slum. How do you trace your ancestry? Are e-cigarettes a healthy alternative? Just some of the wide ranging topics we discussed.</p> Dr Cathy Day is a biological anthropologist at the National Centre for Epidemiology and Population Health at the ANU   Interview by Rod   <p> </p>