Why Is Alzheimer's Disease so Common?

Alzheimer's disease is common as clinical guidelines set forth a broad definition for it that relates to general symptoms of memory loss, notes both Salon and the Alzheimer's Association. The Alzheimer's Association and the U.S. National Institute of Aging continuously monitor Alzheimer's disease and modify its definition accordingly.

Alzheimer's disease refers to a spectrum of symptoms and stages, notes Salon. One of the earliest stages is referred to as the preclinical phase. In this state, a person may not experience any symptoms, but medical experts can identify the condition through an examination. The next stage is known as mild cognitive impairment. Symptoms are present during this stage, but the symptoms do not always trigger Alzheimer's. Finally, dementia is the most severe stage of Alzheimer's, and medical experts aim to detect the disease before it reaches this stage.

Experts state that Alzheimer's disease is not a natural part of the aging process, notes the Alzheimer's Association. Alzheimer's is a progressive disease, and the disease worsens with age. Common symptoms include an inability to hold conversations or recall information. As of September 2015, no cure is available; however, treatment options may help slow the progression of the disease to improve overall quality of life.