<prompt> Human: My mother hasnt worked since 1988. My dad has been a janitor at the local post office his entire life and makes about 55kyear. Their expenses are relatively low, so they do put a large portion of that into retirement accounts. No debt, house paid for, 12 and 15 year old cars. They havent taken a vacation in 20 years.My dad likes to think he knows all about investing. My mom thinks they dont have enough saved up, so she wants to be aggressive. In total, I believe they have about 450k the equity in their home. My dad will have a pension so long as the post office is still around. My mom will have 900month social security, my dad with none. Theyre at age 60.My moms freaking out because they lost 20k in total the last two days. Ive reminded them they cant be as aggressive as they have and its time to move into a much more conservative, income based investing strategy. They have most of the money tied up in Fidelity mutual funds and some through a thrift fund via the post office.When I mean aggressive, I mean a large portion in Fidelitys biotech sector fun, utilities, and other random sectors. Some bonds, large caps, etc. Id estimate it about 90 stocks, 10 bonds. They also have about 40k cash in the bank.What should their strategy be at this point? How can I get them to look at their fun choices better? Theyre expecting things to continue to go up to the moon, but with Brexit yes, I know of the megathread and the just general uncertainty, its very well possible we could have a 10 year or longer bout of down years. Theyre meeting with their Fidelity advisor tomorrow at least, but only for an introduction as the old guy retired. He doesnt actually give them recommendations, just praises them for the amount they have saved.Could anyone recommend some fund choices or allocation percentages for someone whos 60 at this current state in the world economy?Thanks  <response>: Remind them that their asset allocation is precisely the reason they lost 20k in the last two days, and why they could lose another 20k in the next two days. Ideally they would have been swapping to a less risky allocation over the past few years. If they want to hold out and try and time the market for an upswing before doing this, tell them that it is a pure gamble, and that it may be years before recovery. If they need the income now, switch now. 