Nordic countries are known to be happy - so should we all raise our children like the Scandinavians do? British parent Helen Russell moved to Denmark and was shocked that Danish children play outside in all weathers; are given sharp tools and they're shown how to light matches.

In her book The Danish Secret to Happy Kids: How the Viking Way of Raising Children Makes Them Happier, Healthier, and More Independent, Helen explains why play, risk and independence are the cornerstones of "viking" parenting.    

This series on parenting coincides with Dr Laurie's new free online class, The Science of Wellbeing for Parents which is available now at Coursera.org. You can sign up at drlauriesantos.com/parents.

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