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Researchers have examined brains from 235 former NFL players who died between 2016 and 2021 and have confirmed chronic traumatic encephalopathy (CTE) in 215. Including all 878 players who died in that period, the team has calculated a conservative minimum prevalence of CTE of 24.5% at death and urged prevention to cut repetitive head impacts.
The FDA has cleared four blood tests to help diagnose Alzheimer's in people with memory problems, a move that could speed access to therapies. Experts caution that tests are not for asymptomatic individuals, and many questions remain about accuracy. Readers are advised to focus on brain-healthy risks like blood pressure, diabetes and smoking.
AI trained on over 40 million facial images and 35,000 cancer patient photos estimates biological age and survival chances from a face photo. Studies suggest potential to inform treatment but offer no definitive predictions; experts caution about bias and the need for broader testing.