Brain atrophy itself is not life-threatening, so there is no precise answer to the question of how long a person can live with mild brain atrophy. Mild cerebral atrophy has almost no effect on the length of life through active treatment. However, if the patient is unable to remove the cause of mild cerebral atrophy, the symptoms of cerebral atrophy will worsen and even mental impairment will occur, which may lead to poor quality of life and thus indirectly shorten the length of life. Mild cerebral atrophy can occur in normal people as they age, but it develops slowly and generally has less impact on normal life. If brain atrophy appears too early and develops too fast, brain atrophy caused by pathology can be considered. Patients can promptly treat the primary disease, such as cerebrovascular disease caused by hypertension can lead to brain atrophy, or brain atrophy caused by patients with viral encephalitis, patients actively go to the hospital for symptomatic treatment to prevent brain atrophy from continuing to develop. In addition, patients can also consider Chinese medicine or acupuncture and other traditional Chinese medicine treatments to slow down the development of brain atrophy and reduce the impact of brain atrophy on the length of life.