Exercise May Help Aging Brain Clear Waste, Study Says

Exercise May Help Aging Brain Clear Waste, Study Says

Exercise May Aid Brain Waste Clearance, Study Finds Regular exercise may help the aging brain clear metabolic waste, according to a review led by James Broatch, a researcher at Victoria University. The peer-reviewed paper, 'Exercise as a regulator of glymphatic function,' was published Aug. 10 in the journal Trends in Neurosciences. Researchers examined existing animal and human studies on physical activity and brain health. Broatch said the ana…

The brain's waste-clearance system becomes especially active during sleep, helping remove proteins linked to Alzheimer's disease — and a 2025 Vanderbilt study found that focused meditation can produce strikingly similar cerebrospinal-fluid dynamics while people are fully awake.

Your brain is sealed inside the skull, consumes enormous energy and produces metabolic by-products around the clock. It has no ordinary lymphatic plumbing threaded through its tissue, so keeping its chemical environment stable depends partly on the movement of cerebrospinal fluid, or CSF, and interstitial fluid around brain cells. Sleep has become closely associated with this maintenance system. During non-REM sleep, slow neural, vascular and CS…