TO REDUCE THE RISK OF ALZHEIMER’S, EAT FISH. Well, maybe. But there’s a catch: “Eating seafood is linked to a reduced risk of dementia-associated brain changes in people who carry the ApoE4 gene variation, which increases the risk for Alzheimer’s disease. Eating seafood was not linked to similar changes in those who carried other forms of the ApoE gene.”

I notice that “eat more fish” is a default headline trope, even when the evidence is sketchy.