Short exercise bouts may protect against Alzheimer's.

A new study by the University of Maryland found that exercise training strengthens brain connections, which can help prevent or stabilize mild cognitive impairment and delay the conversion to Alzheimer's dementia. The study followed 33 participants between the ages of 71 and 85 years old who had already experienced some form of cognitive decline. Those who exercised showed an increase in brain strength and more synchronized brain activity, demonstrating that exercise can induce the brain's ability to change and adapt.