In 2011, Dr. Charles Czeisler was in Minnesota, waiting to give a lecture, when his phone rang. Czeisler, a professor of sleep medicine at Harvard Medical School and the chief of the division of sleep and circadian disorders at Brigham and Women's Hospital in Boston, took the call -- and might have altered hockey history in the process.
The call came from Boston Bruins team physician Dr. Peter Asnis, who needed help heading into Game 7 of the Stanley Cup finals, which his team was playing in the following night against the Vancouver Canucks.