We often assume that we can’t fix the big problems we see in the world around us. And that trying is for suckers - who’ll just end up sad, exhausted and defeated.
Dr Laurie Santos and Dr Jamil Zaki meet people who have tried to make a difference in their communities - often against great odds - and have found the process made them happier and more hopeful.
Jamil's book *Hope for Cynics: The Surprising Science of Human Goodness *is out now.
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