The Biography of a Mental Muscle is true story of the pathway and experiences of a man who grew up in the streets of Washington, DC, although he was surrounded by a positive family. This book depicts a young man who somehow became wayward in his conduct and behavior and landed in some form of serious detention more than one time during his youth.Before turning his life around, Cornell Evans Jr. was a boxer, hustler, a father, a husband, a military man, an inmate, and a barber. Evans took all of those things and filled the book to showcase loyalty, honor, integrity, respect, betrayal, pain, deceit, and triumph.The Biography of a Mental Muscle is truly about how important using your brain is in making decisions that not only affect you but those around you, as Cornell learned through his stint in jail, in which he left behind his wife and kids. While there, he sought a higher power and found one that turned his life around.Throughout the book, you can feel his ups and downs and read what made him continue on and to continue to grow as a man today. The biggest down was his wifes illness while he was in jail. His biggest high was writing this book. His story is not unlike many hard-knock stories, but the significance of Evanss life is about being strong enough to use your mental muscle to fight to make the right decisions in your life so that you can get back up when knocked downlike he did.