"Dementia risk" refers to the likelihood or chance of developing dementia, which is a condition that affects the brain and causes problems with memory, thinking, and behavior. Full definition
Although extensive research now suggests major head injury increases dementia risk in later life, scientists do not know the biological changes that cause this effect. (sciencedaily.com)
Large population - based studies like this are extremely useful for identifying factors linked with dementia risk, but they can't tell us what the root cause of an association might be. (sciencemediacentre.org)
Participants with onset at age 90 or older had an even lower dementia risk. (sciencedaily.com)