As human beings alive in the 21st century, it's probably no news to you that our rapid pace of life can be very stressful, filled with constant emails, non-stop messages and phone calls, social media pressures, and of course, an inundation of news (mostly negative) from around the globe. We need to disconnect, re-center, and prioritize well-being. Here are the best apps to help you switch off, meditate and add some zen to your life.