Smart grew up in an alcoholic household and started drinking by the age of 12.

In his early 30s, he decided to stop drinking, but found himself left with a thinking problem leading to stress and depression.

[3] In 2013, Smart published his first book Clarity: Clear Mind, Better Performance, Bigger Results.

striker Daniel Sturridge scored a hat trick against Fulham, in his post-match interview, he walked in holding a copy of Clarity.

"[4] The PA Life magazine gave the book a positive review saying, "broken down into clear chapters that take you on a pathway to clarity and guide you in making changes as you move forward.