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Cultivating Resilience

Scientific American

|

October 2025

Early research suggests that Alzheimer's risk can be mitigated through diet, exercise and social stimulation. But definitive studies remain elusive

- By Sara Harrison

Cultivating Resilience

WHEN JULI COMES HOME after work, her husband doesn't regale her with stories about his photography business the way he once did. Instead he proudly shows her a pill container emptied of the 20 supplements and medications he takes every day. Rather than griping about traffic, he tells her about his walk. When they go out to a favorite Mexican restaurant, he might opt for a side salad instead of tortilla chips with his quesadilla. “He’s actually consuming green food, which is new,” says Juli, who asked to be identified by only her first name to protect her husband’s privacy.

Over the past year Juli's husband has agreed to change his daily habits in hopes of halting the steady progression of Alzheimer's disease, which he was diagnosed with in December 2023 at age 62. Juli and her husband are both self-employed, and their insurance plans didn't cover the positron-emission tomography scans for disease tracking that a neurologist prescribed, which would have cost thousands of dollars. So they decided to spend that money on a doctor who promises that diet and lifestyle changes can treat Alzheimer's. He recommended a keto diet, along with light cardio exercise and strength training. He also prescribed a bevy of supplements, such as creatine, which Juli's husband takes alongside the memantine and donepezil prescribed by his neurologist. Juli doesn’t expect the diet and daily walks to cure her husband, but she hopes the healthy lifestyle will help manage and even improve his condition. It feels like common sense. “You stop eating fried food, you move your butt, and you feel better,” she says.

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