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Scientists found that five genes may play a critical role in determining whether a person will suffer from Lewy body dementia, a devastating disorder that riddles the brain with clumps of abnormal protein deposits called Lewy bodies. The results also supported the disorder’s ties to Parkinson’s and Alzheimer diseases.

Researchers are studying how different patterns in the way older adults walk could more accurately diagnose different types of dementia and identify Alzheimer’s disease.

People with enlarged fluid-filled spaces in the brain around small blood vessels may be more likely to develop cognitive problems and dementia over time than people without these enlarged spaces, according to a new study.