You may have noticed the latest trend in Keep Calm T-Shirts and even Facebook posts: Keep Calm I'm a Nurse, Keep Calm and Carry On, Keep Calm and Let the Chef Handle It, Keep Calm It's My 40th Birthday Today.... Anyone can go on zazzle.com and create their own Keep Calm T-Shirt message. I’m visiting my family these few weeks and these Keep Calm messages have caught my attention.In reality, however, there are lots of events, that can shatter our calm and leave us feeling anxious, on edge, even i...