In my 28 year career in the investment industry, I had to reassure clients time and time again. Investors get really concerned when they hear Doom & Gloom predictions from well meaning friends or the media.
Time and time again I have to remind them to disregard market fluctuations. Good quality investments in a well balanced portfolio always recover. It is safer to stay the course.
Here is a fantastic article about would have happened if you would have followed the latest sell everything strategy that did its rounds earlier this year.