For people with a diagnosis of dementia... A diagnosis of dementia can be scary. Sometimes people diagnosed with dementia do not accept it at first. Many older people believe that changes to the mind come naturally with age and their journey through life. While some memory changes can be expected as you age, dementia as a disease will change your memory and concentration more quickly. For this reason, it is important to start talking about it now with your loved ones and others who will support you.