They're part of the Baby Boomer generation, and millions of them are expected to face a heartbreaking and costly disease: Alzheimer's.
The Alzheimer's Association has released a new report on the mind-robbing disease.
It finds that while more than five million Americans have already been diagnosed and that number is expected to rise dramatically.
"If we don't get it changed, it will go as high as 16 million by the middle of the century, and that's ten million baby boomers who will have the disease," says Alzheimer's Association president Harry Johns.
Some studies have suggested daily exercise, a healthy diet and a continuing education might help protect the brain in old age, but there is no proven method of prevention when it comes to Alzheimer's Disease.
The report calls for government funding for more research.
"We invested heavily in cancer, heavily in heart disease, and in HIV/AIDS, with very positive results. We have not yet done the same thing with Alzheimer's," Johns says.
The hope is that money can buy more time for the Baby Boomer generation.