CHARLOTTE, N.C.- If you’re a full-time worker over the age of 40, chances are you’ve spent a good chunk of each weekend wishing you had two more days off. That’s because researchers actually found that working more than 3 days a week once you hit that 4-decade milestone is bad for productiv ity. According to research published in the Melbourne Institute’s “Working Paper” series, the two-day weekend is not enough. For 40-year-old workers to be sharper and more productive in the work environment, they need more days off. Specifically, they need at least a four-day weekend. ...read more read less