Dr. Varna spent the past 20 years studying how we can all benefit from the wellspring of optimism and reap its benefits, even if you are the glass-half-empty-type.
FastCompany | 8 min read
Dr. Varna spent the past 20 years studying how we can all benefit from the wellspring of optimism and reap its benefits, even if you are the glass-half-empty-type.
FastCompany | 8 min read