'A night without dreams is high-quality sleep' is a misconception, "said Sun Wei, chief physician of Peking University Sixth Hospital, at a press conference held by the National Health Commission today. Dreaming is a normal physiological phenomenon, and most people have multiple dreams during a night's sleep, but not all dreams are remembered. Dreaming is a sign of the brain processing important information during sleep, and generally does not damage our sleep quality. ”Sun Wei said. Sun Wei analyzed that dreaming has multiple positive effects: one is memory consolidation. Dreaming screens, consolidates, and reactivates the experiences and emotional memories of the day, helping to stabilize memory; The second is emotional regulation. Dreaming can help the brain digest negative emotions during the day and maintain mental health; The third is cognitive integration. Dreams are subjective experiences in which the brain integrates new and old information, and this process is crucial for enhancing learning ability and stimulating creativity. Sun Wei said that the real damage to sleep quality is frequent nightmares. Nightmares are dreams that command fear and can wake people up from sleep, which can disrupt sleep continuity and lead to a decrease in sleep quality. Long term nightmares can trigger emotional problems such as anxiety and depression, increasing psychological burden. Ordinary dreams don't need to worry. If you are frequently awakened by nightmares that affect your daytime state, it is recommended to seek the help of a professional doctor. (New Society)