Alzheimer's Disease affects 5 million American people. The underlying cause of the disease is still unknown and a cure is not available at this time. Some of the medications available on the market can help to slow down the progression of the disease, and help the patients to remain functional till older age. The article presents some of the signs and symptoms of AD, starting with the slow onset, which makes it hard to distinguish the symptom and to establish a diagnosis, especially since one of the disease traits is the ability of the patient to hide the facts from friends and family.