Alzheimer's dementia: triggers and first signs - at what age the disease begins. More than 1.8 million people in Germany are affected by Alzheimer's disease.

Over ten risk factors can promote the development of the disease. Certain symptoms and complaints appear years before diagnosis. In addition to age being the main risk factor, depression, lack of sleep, serious head injuries and hearing loss also increase the risk. Even exposure to fine dust is mentioned as a point of discussion, according to the Alzheimer Research Initiative.