Eating a snack, going for a walk or scrolling through social media: No matter how you spend them, microbreaks of 10 minutes or less during work can increase vigor while decreasing fatigue, according to a meta-analysis published Wednesday in the journal PLOS ONE.Eating a snack, going for a walk or scrolling through social media: No matter how you spend them, microbreaks of 10 minutes or less during work can increase vigor while decreasing fatigue, according to a meta-analysis published Wednesday in the journal PLOS ONE.