Operation 66 has joined the long line of viral fitness challenges promising to help you overhaul your health. Like the 75-Hard, 75-Soft, and Winter Arc challenges, Operation 66 is designed with certain health-promoting guidelines you follow for a specified amount of time - in this case, 66 days.
If you're wondering if there's any point to all of these challenges, then you'll be happy to know that setting these types of goals can lead to sustainable change. In a study by Penn University, researchers found that those who set fitness goals increased their movement by around 1,384 steps per day.
