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Exercise Mice Boost Brain Growth, Alzheimer's Reversed in Study

11/1/2025

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Summary

Story summary

A Brain Research study finds extracellular vesicles from exercising mice promote neurogenesis in sedentary mice by stimulating hippocampal neuron growth after injection.
Exercise releases these vesicles into the bloodstream, suggesting they carry signals to the brain.
In the Signal Transduction and Targeted Therapy study, engineered nanoparticles reverse cognitive symptoms of Alzheimer's disease in mice by repairing the blood-brain barrier and clearing amyloid-beta proteins.

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Story summary

A Brain Research study finds extracellular vesicles from exercising mice promote neurogenesis in sedentary mice by stimulating hippocampal neuron growth after injection.
Exercise releases these vesicles into the bloodstream, suggesting they carry signals to the brain.
In the Signal Transduction and Targeted Therapy study, engineered nanoparticles reverse cognitive symptoms of Alzheimer's disease in mice by repairing the blood-brain barrier and clearing amyloid-beta proteins.