He was diagnosed with colon cancer at 31 in prison, and his survival odds weren't great. Now 59, he says spiraling is pointless.

Nick Leeson was given a 60% chance of living within five years after his diagnosis. That was 28 years ago.

Courtesy of Nick Leeson

• Nick Leeson's unauthorized trades led to Barings Bank's collapse, a major banking scandal in 1995.
• Leeson battled colon cancer during his imprisonment, undergoing surgery and chemotherapy treatment.
• Post-cancer, Leeson emphasizes that mindset and regular checkups are key to a full life post-cancer.

In 1995, Nick Leeson became synonymous...