The United States has announced its new guidelines for the diagnosing of Alzheimer's disease on Tuesday. Alzheimer's disease is the most common form of dementia and is widespread among the people above the age of 65. The disease affects about 37 million people worldwide and has no cure.

The new guidelines says that memory loss may not be a primary symptom in the early stages of the disease. These guidelines include three phases for diagnosing the disease instead of one. These guidelines were developed by experts at the National Institutes of Health, the NIA and the Alzheimer's Association and are published in Alzheimer's & Dementia: The Journal of the Alzheimer's Association.

National Institute on Aging (NIA) Director Richard Hodes said that Alzheimer's disease is a common and major problem of the country. The research of the disease has emerged greatly in the past quarter of a century but more efforts are required to prevent the occurrence of the disease. Alzheimer's disease claims the life of thousands of people every year.

The new diagnostic guidelines are expected to benefit the patients and speed up the pace of research.