Vanessa Zuisei Goddard has a brief introduction to energy and effort, including some good quotes. You can find her article here: Pocket Paramis: Energy
Susan Pollak discusses the tendency for people to hold their breath or breathe irregularly while texting, emailing, or generally being focused on their devices. She provides several suggestions that can help us to pause and refresh when we find ourselves trapped in “tech apnea”. You can find that article here: Three Steps to Refresh from Tech Overwelm