• Anger fuels creativity 

• Guilt sparks improvement 

• Self-doubt enhances performance 

In the same vein, we can become wiser and more effective when we harness the darker parts of our personality in certain situations. For instance: 

• Selfishness increases courage 

• Mindlessness leads to better decisions

The key lies in what the authors call “emotional, social, and mental agility,” the ability to access our full range of emotions and behavior—not just the “good” ones—in order to respond most effectively to whatever situation we might encounter. 

Drawing on years of scientific research and a wide array of real-life examples including sports, the military, parenting, education, romance, business, and more, The Upside of Your Dark Side is a refreshing reality check that shows us how we can truly maximize our potential. With an appreciation of our entire psychological toolkit, we become whole—which allows us to climb the highest peaks and handle the deepest valleys.