Look no further than the financial markets' reaction to Britain leaving the European Union for an example of how world events can take a toll on your investments, including your hard-earned retirement savings.
It's scary for investors of all ages, especially those just years away from retirement, like 63-year old Michelle Jegge, who says she has been putting money into stocks since her first Communion. Jegge owns a small insurance agency.
"I've been a big investor. That's the way to grow. It's a rocky road, but that's the way to grow," said Jegge, who lives in New Jersey with her husband.