Category: Brain
Cortisol Kill-Switch: Exercise Rewires Stress Biology
A first-of-its-kind one-year clinical trial proves that 150 minutes of weekly aerobic exercise significantly lowers long-term cortisol levels and slows brain aging.
They were once hailed as breakthroughs. Middle-Aged Americans Are Lonelier, More Depressed, And Weaker Than Earlier Generations
Something is going wrong for middle-aged Americans, and most of the wealthy world doesn’t share the problem.
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Noise is the Signal: Why Weak Brain Connections Predict Behavior
Researchers have discovered that the 90% of brain signals usually ignored as “noise” can predict behavior just as accurately as the strongest signals, revealing a much more complex “hidden iceberg” of neurobiology.
Could Alzheimer’s Begin in the Nerves, Not the Brain?
Researchers using “human-on-a-chip” technology have found that Alzheimer’s-related movement issues may start in the peripheral nerves, rather than the brain, offering a new path for early diagnosis.
Hunter-Gatherer Genes Reveal the Hidden Power of Human Smell
A new genetic study of Malaysian Indigenous populations shows that hunter-gatherers have preserved “super-smell” genes to navigate rainforests, while agriculturalists’ smell genes have adapted to manage high-carb diets.
