While it can be hard to manage age-related changes of any kind, it can feel extra tough when those changes impact your memory and cognition. But it’s especially important to pay attention to brain-related changes as you get older. While all cognitive changes are not dementia , some are. Dr. Gregory Day , a behavioral neurologist and dementia specialist at Mayo Clinic in Florida, defines dementia as a “change in memory and thinking. So, something that’s different from before — and for me to