What’s the battery level in your phone? Tablet? Laptop? You probably have a good idea of how fully charged it is, and have checked recently to make sure these crucial electronic devices don’t run down. But what about your own energy levels?
http://www.theglobeandmail.com/report-on-business/careers/career-advice/life-at-work/you-need-recharging-just-like-your-phone/article22694544/