Happiness is a critical factor for work, and work is a critical factor for happiness. In one of those life-isnโt-fair results, it turns out that the happy out-perform the less happy.
Gretchen RubinOne reason that challenge brings happiness is that it allows you to expand your self - definition. You become larger. Suddenly you can do yoga or make homemade beer or speak a decent amount of Spanish. Research shows that the more elements make up your identity, the less threatening it is when any one element is threatened.
Gretchen Rubin