According to the National Institutes of Health, Alzheimer’s disease occurs when there is a loss of brain function and is a type of dementia that worsens over time. In particular, the disease can affect cognitive functions like memory and thinking. The risk of Alzheimer’s increases as a person becomes older, has a close blood relative who has suffered the disease in the past, or has specific genes that have been connected to Alzheimer’s in the past. Alzheimer’s can also be divided into two forms, early onset Alzheimer’s and late onset Alzheimer’s. With early onset Alzheimer’s, people start showing symptoms before they turn 60 years of age. While early onset Alzheimer’s is less common than late onset, it becomes worse quickly. Late onset Alzheimer’s is the most common type of Alzheimer’s, with factors such as the environment or genes playing a role in the development of the disease. At this time, the cause of Alzheimer’s is still unclear.