Stay calm. Breathe in, aaaand breathe out. You've likely been hearing through the media that the stock markets are falling. We are in crisis, recession, dark clouds etc., etc. According to the media, it's the end of the world as we know it. Not so fast! Remember that this has happened before, most recently in 2000 and 2007-08. It is simply the nature and history of the stock market. It may (or may not depending who you ask) be happening now—and it will happen again. History …