The Top Career Move for Happier Work-Life Balance.

Simone Stolzoff's new book, "The Good Enough Job," reveals that the happiest workers all had a strong sense of self-identity outside of work. By diversifying their identities, they were less likely to lose themselves to their jobs and more resilient in the face of adversity. This approach can also make you more productive and less stressed. Stolzoff suggests approaching your self-worth like your stock portfolio and investing in multiple sources of meaning in life.