There’s plenty of evidence, both anecdotal and scientific, that indicates that entrepreneurs who are able to take a break and unplug from time to time are happier, healthier, and more productive than their stressed-out counterparts.
http://www.forbes.com/sites/chrismyers/2016/04/29/can-this-entrepreneur-really-unplug-for-a-week-well-find-out/#60a7cec96cb1