A new large-scale study suggests a sleep “sweet spot” of about 7 to 8 hours nightly may lower dementia risk. Researchers found the brain-health benefits are even stronger when paired with regular exercise and fewer sedentary hours. The findings point to practical daily habits that could meaningfully reduce the odds of developing dementia later in life.
AI startup Ivory is building a “treadmill test” for the brain, using cognitive assessments to measure attention, memory, and executive function. It plans to provide benchmarked scores and actionable insights that clinicians can use to distinguish early cognitive decline from lifestyle-driven issues. Ivory has partnered with Metropolis Healthcare and is in talks with diagnostic chains, insurers, and wellness platforms like Ultrahuman.
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