03/26/2014 09:19 am ET Updated Mar 26, 2014

CEO's Secret To Decision-Making: Total Silence

Neilson Barnard via Getty Images

A friend bet Khajak Keledjian $15,000 six years ago that he wouldn't be able to sit still for 15 minutes in complete silence. After nearly five months of trying, the 41-year-old CEO of high-fashion retailer Intermix couldn't do it.

"I never expected it to be so hard," Mr. Keledjian says. He even tried going to a church to sit still. "I found myself reaching for my BlackBerry every minute. I couldn't shut myself down."

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