Helen is chairing this Intelligence Squared event, introducing Robin Dunbar, the world-renowned psychologist and author who famously discovered Dunbar’s number: how our capacity for friendship is limited to around 150 people.

Robin explains why friends matter to us – more than we think. The single most surprising fact to emerge out of the medical literature over the last decade or so has been that the number and quality of the friendships we have has a bigger influence on our happiness, health and even mortality risk than anything else except giving up smoking.

Join us as we peer into the incredible complexity of the social world in which we are all so deeply embedded.

This is an online event, starting at 6pm. Booking required.