4/4 Helen asks: Who cares? Why do we care? If genes are selfish why is altruism attractive?
3/4 Helen asks: who are we? Why do we have a personality?
2/4 Helen look at our perception of women from the past and in the present.
1/4 Natural resources are dwindling. How can we make sure everyone is fed?
4/4 Helen Keen tackles the problem of boredom and the potential solution that is gamification.
3/4 Helen Keen, Peter Serafinowicz and Susy Kane explore how to get on with everybody else.
2/4 The problems of finding the perfect mate, including how the bicycle revolutionised sex.
1/4 The Yorkshire-born alternative comedian begins with the biggest problem of them all.