My uncle told me 50 years ago that if you invest, remember it is for the long term. On 10/9/07 the dow was at 14,164--the mortgage meltdown hit so by 3/6/09 the dow bottomed out at 6469. If you stayed the course by 8/26/13 the dow hit a new high at 16,072. Today, even after a horrific crash, the dow is 39,000. I go back to my Uncle, investing is for the long term. By the way, I am retired with almost all my retirement funds in the stock market and will stay the course -- I just have made a vow to myself to not look at my portfolio for a couple of months.