Heart Rate World Records  

At the Zappos.com Bay to Breakers road race in San Francisco, California, 26 people set a world record for Largest Group Laughing To Raise Their Heart Rates. The record was one of 40 set that day, allowing the race to set an additional record for “Most World Records Set at a Road Race.” See all 40 records at RecordSetter.com/Zappos.

Darryl Learie had an average heart rate of 177 BPM as a result of an hour of exercise. His peak heart rate reached 191 BPM.