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Everyone Knows Memory Fails as You Age. But Everyone Is Wrong.

The New York Times: “…The relevant difference is not age but rather how we describe these events, the stories we tell ourselves about them. Twenty-year-olds don’t think, “Oh dear, this must be early-onset Alzheimer’s.” They think, “I’ve got a lot on my plate right now” or “I really need to get more than four hours of sleep.” The 70-year-old observes these same events and worries about her brain health. This is not to say that Alzheimer’s- and dementia-related memory impairments are fiction — they are very real — but every lapse of short-term memory doesn’t necessarily indicate a biological disorder. In the absence of brain disease, even the oldest older adults show little or no cognitive or memory decline beyond age 85 and 90, as shown in a 2018 study. Memory impairment is not inevitable. Some aspects of memory actually get better as we age. For instance, our ability to extract patterns, regularities and to make accurate predictions improves over time because we’ve had more experience. (This is why computers need to be shown tens of thousands of pictures of traffic lights or cats in order to be able to recognize them). If you’re going to get an X-ray, you want a 70-year-old radiologist reading it, not a 30-year-old one…”

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