Everyone deserves to be happy. Besides realizing it's in you, this is probably the biggest block to happiness, Dr. Holden says.

In Dr. Holden's book Be Happy, he talks about your happiness contract, which is this idea that in the back of your mind, you've written up a contract of how much happiness is possible and how much is too good to be true. "Every Happiness Contract has a central clause in it that states: 'Happiness must be deserved,'" he writes. However, Dr. Holden says you do not deserve happiness, because happiness is free.

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