Culture | Brain fog

Have doctors been wrong about how to treat Alzheimer’s disease?

A new book argues that dogma and bad science led Alzheimer’s research astray

A brain researcher holds a sample
Photograph: Alana Holmberg/New York Times/ Redux/eyevine

Alzheimer’s disease affects more than 30m people worldwide, mostly the elderly. After the age of 65, the chance of developing it doubles every five years. By 85, the odds are one in three. Its symptoms, which include memory loss, difficulty with basic tasks and depression, progressively worsen. As global life expectancy rises, so will cases of Alzheimer’s, making it one of the big public-health challenges of an ageing world.

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This article appeared in the Culture section of the print edition under the headline “Brain fog”

From the February 8th 2025 edition

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