With record rates of depression, we need to ask: 'what is the key to happiness?'. From lifelong learning to community, Sonia Vadlamani explores how to cultivate a life of joy with our 10 keys to happiness. Spoiler alert: materialism isn't on the list.    It's often difficult for us to always feel happy and joyful, be it because of the unrealistic standards of beauty and perfection we impose on ourselves, or the negativity we surround ourselves with. It can be due to the fear of failure