Mild cerebral atrophy refers to the reduction in brain tissue volume, brain parenchyma content, and brain weight due to various causes. Mild cerebral atrophy usually does not show obvious clinical symptoms, such as memory loss or cognitive dysfunction. The population susceptible to cerebral atrophy is generally the elderly, and the prevalence is higher in people over 70 years of age. People with more stressful lives are also prone to cerebral atrophy. Older people with high blood pressure and diabetes are also prone to brain atrophy. There are also people with unscientific diets, such as those who usually eat fatty fish and meat, who are also prone to brain infarction and brain atrophy diseases. Patients should usually take a light diet and eat more brain-boosting foods, such as walnuts, as appropriate.