How to Recognize Early Signs of Dementia Whether you are caring for an elderly person or you have elderly loved ones, looking out for the early signs of dementia is vital, since lifestyle changes and treatment to quell symptoms, may be necessary. Recognizing dementia early allows those concerned to make important decisions regarding their future and that of our loved ones. Moreover, in cases where treatment is required, the earlier the better, to increase the chances of success and to keep cognitive decline at bay.