Sunday, August 9, 2026

Stress can scramble your brain’s internal GPS, MRI study finds

Stress may literally scramble the brain’s internal GPS. Researchers found that cortisol, a hormone released during stress, made people significantly worse at navigating a virtual environment and disrupted the precise activity of grid cells, specialized brain cells that help us understand where we are in space. When landmarks were missing, this navigation system nearly stopped functioning, while another brain region appeared to step in and compensate.

from Top Health News -- ScienceDaily https://ift.tt/7AibFLx

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Cassini reveals a surprising twist in Saturn’s magnetic shield

Cassini data has revealed a surprising twist in Saturn’s magnetic shield: the planet’s rapid rotation appears to drag a key opening in its m...