When Darla Arni’s mother began showing the first signs of dementia 16 years ago, Arni worried she was doomed to the same fate. So Arni began reading up on what she could do to stay mentally sharp. Turns out, plenty. Arni, now 55, grew up on a farm where her mother fried just about everything in lard. Today, she skips the fried foods and eats plenty of fruits and vegetables, takes fish oil pills, goes for regular walks and meditates during a weekly yoga class.
