Barbara Macari's husband, Frank, always handled the investments in the family. Then one day, Frank, a real estate broker, gave his wife the shock of her life.
"I was coming down the stairs, and he came to me and said, 'I don't understand money anymore,' " Barbara said.
A couple of months later, Frank, 74, was diagnosed with Alzheimer's disease.
"He can no longer write checks," said Barbara, 72. "He doesn't even carry money with him because he doesn't understand it."
An estimated 5.1 million people age 65 and older have Alzheimer's disease or other dementias that eat away their ability to manage their financial affairs. With 10,000 people turning 65 every day for the next decade and half, the number of seniors dealing with cognitive decline is expected to keep rising.
That means that seniors, with a median household net worth of $170,500, will be more vulnerable to financial exploitation, whether it's a scam by crooks who prey on the elderly or theft by someone they trust.
"It's a huge problem," said Daniel Marson, professor of neurology at the University of Alabama at Birmingham. "Poor financial decisionmaking and financial exploitation, financial elder abuse are rampant."
It's easy to see why seniors are an easy mark for crooks.