Alzheimer's disease, the most common form of dementia, is often mistaken as something that only affects aging men and women.

While the Alzheimer's Association notes that age is the biggest risk factor for Alzheimer's, the group also warns that even men and women nowhere close to retirement age can develop the disease.

In fact, the Alzheimer's Association reports that, in the United States alone, roughly 200,000 people under the age of 65 have early-onset Alzheimer's disease.

According to the Alzheimer's Association, many people with early-onset are in their 40s and 50s. Recognizing that Alzheimer's is not just for retirees but capable of affecting younger men and women with families and careers is important, as the Alzheimer's Association points out that healthcare providers typically do not look for signs or symptoms of Alzheimer's in young people.

In such people, symptoms of Alzheimer's may be incorrectly attributed to stress. Adults who suspect they might be suffering from early-onset Alzheimer's should have a comprehensive medical evaluation, which may include a neurological exam and/or brain imaging, conducted by a physician who specializes in Alzheimer's disease.