A 91-year-old former hedge fund manager says weighing probabilities can prolong your life. Here's how he does it.

• Edward Thorp, a 91-year-old former hedge fund manager, has some tips for a long life.
• "Minimize the chance of really bad outcomes of one sort or another," Thorp told Bloomberg.
• He also advocates habits that maximize the good outcome: regular exercise and a healthy diet.

Take it from a 91-year-old mathematician: Living a long, healthy life is like a game of probability.

You want to "minimize the chance of really bad outcomes of one sort or another," Edward Thorp, a mathematics professor, hedge fund manager, and blackjack player, told Bloomberg.