Lack of sleep can have a certain effect on memory. Some people are not able to ensure enough sleep in order to finish their work due to work or school pressure, and some people are used to living at night, staying up late for a long time causing memory loss, which can be avoided through self-adjustment. Lack of sleep, especially long-term sleep deprivation, can lead to brain dysfunction, resulting in memory disorders, causing slow reaction and reduced alertness, so people should ensure adequate sleep. It is recommended that teenagers ensure about 9 hours of sleep per day, and adults are recommended to ensure 7-8 hours of sleep. People who are affected by insomnia all year round should understand whether the cause of insomnia is caused by a disease or a physiological cause. If it is caused by physiological reasons, or due to emotional anxiety combined with depression, can be physical exercise, psychological counseling, or in severe cases, medication can be used to improve the quality of sleep, which in turn can improve memory.