Why some people escape Alzheimer’s despite carrying a high-risk gene

Scientists have discovered why some people with a high genetic risk of Alzheimer’s remain mentally sharp into their 80s, uncovering a rare mutation that protects the brain from harmful protein buildup.

Scientific signal separates durable discovery from noise — and often foreshadows policy and product.

ScienceDaily reported on this under science. RedScroll surfaces the signal with an extractive brief — not a reprint of the original article. Read the source for full reporting.