Research shows that the healthy actions of others rub off on us. A study published in the Journal of Social Sciences found that participants gravitate towards the exercise behaviors of those around them. And a 2016 study published in the journal Obesity found that overweight people tend to lose more weight if they spend time with their fit friends — the more time they spend together, the more weight they lose.
Which makes a pretty strong argument for making your workouts communal. But it’s just one of many reasons why it may be easier (and more enjoyable) to get fit in a pack.