Lack of energy is considered to be caused by lack of sleep due to overexertion or stress. Especially in chronic, long-term sleep deprivation, the patient may show a lack of energy. Patients with nutritional deficiencies, especially vitamin deficiencies, may also suffer from lack of energy and indifference. Patients are advised to eat more fresh vegetables and fruits, replenish trace elements in a timely manner, and avoid high cholesterol and high fat foods. The lack of energy can also be seen in patients who snore at night. Snoring obviously leads to a lack of oxygen at night, and patients can suffer from chronic lack of oxygen, which gradually leads to metabolic syndrome. If you have poor mental health, it is recommended to consult a neurologist to improve the CT or MRI examination of the head to exclude organic brain diseases.