There's no way around it -- this was the worst week for the stock market since 2008. As reports of coronavirus have spread, concerns over individual safety, travel and global supply chains have spooked the global markets and sent stocks down. Even stalwart businesses have felt the pinch. We talk about what's going on in the market and the important lessons for investors. Check out more of our content here: TMF's podcast portal YouTube Twitter Join Our Motley Fool Podcast Facebook Group LinkedIn StockUp, The Motley Fool's weekly email newsletter