![puzzle with missing piece--Alzheimer's Disease](https://www.mcknights.com/wp-content/uploads/sites/5/2022/04/alzheimers-story-860x484.jpg)
Early onset Afib raises dementia risk … Food allergies may boost heart disease, death risk … PET scans could spot Parkinson’s, Lewy body dementia … Older adults want health discounts, ask docs for advice most … Pulse oximeters work differently based on skin tone