A tool to help keep dementia in check

If you worry about your risk of dementia, Lauren Sprague knows your fear. Her father had a stroke when she was in high school. What followed was a long, slow descent into memory loss and dementia. He died at just 63. "So, since I was 16 years old, pretty much every day of my life I worry, 'Is today the day that the same thing could happen to me that happened to my dad?'" Sprague said. "It's an incredible fear to walk around with. …