Dementia:Dementia is a term that refers to a group of neurological disorders that impact the brain and progressively worsen over time. It involves the loss of cognitive abilities such as thinking, memory, and reasoning, which can affect daily activities. Dementia can also lead to changes in behavior and personality, making it difficult for some individuals to control their emotions and actionsAlthough there are no guarantees when it comes to preventing memory loss or dementia, there are some activities that might help sharpen your memory. It's also important to know when to seek help for memory loss.