VIDEO OF THE DAY - The hidden influence of social networks

This is one of the best vodcasts to come from TEDTalks 2010, the annual conference where the greatest thinkers of the age have 18 minutes to share their world views.

Nicholas Christakis, the Harvard social scientist, delves into the fascinating world of social networks and how they influence society and people’s perceptions of themselves and others. Your position in any network can have a profound effect on everything from your happiness to your body weight, according to Nicholas.

If you’ve got 20 minutes spare today, this is well worth a watch.

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