Is mild brain atrophy a precursor to Alzheimer's?

Mild brain atrophy does not necessarily mean that it is a precursor to Alzheimer's disease. Brain atrophy is related to genetics, brain trauma, smoking and drinking, malnutrition and other factors, which can easily cause memory loss, large mood swings, etc. If you are not at ease, you should be close in the near future. Observe your own changes and review regularly.