From Insider: Getting back into the gym after missing one workout may be a crucial part of sticking to a routine — and it could take as little as a nine-cent reward to get you there, according to a massive study published December 8 in Nature. Led by researchers from the Wharton School of the University of Pennsylvania, scientists from 15 universities studied 61,293 members of 24 Hour Fitness over a four-week period. Together, the team used an experimental format called a mega study to compare 54 different strategies for getting people to the gym more often. They found it was surprisingly difficult to predict what worked, but the data suggested that small incentives could help nudge people towards more consistent workout routines. Read the full story in The Insider.