The duration of the Alzheimer’s disease may be 8 to 12 years. In the first 2 to 3 years, symptoms are subtle and the disease may go unnoticed. The most important risk factor is age, since the brain, over the years, is presenting structural and functional changes. Y-neurons-nerve cells are very sensitive to the effects of aging, then, over time, modifying the quantity and form. In fact, after 50 years of age, you lose about 5 percent of neurons for 10 years.
Specialists believe that there are genetic factors that increase the risk of this disease which affects about 4 million people in the United States amount is estimated, will amount to 14 million within 40 years.
Currently, the certainty of the diagnosis of Alzheimer’s disease is about 85 percent, and only confirmed by postmortem analysis of the patient’s brain.
