Staying up late is harmful to the human body to a certain extent, but the size and degree of the harm is determined by their own physical condition. Staying up all night will generally result in poor skin condition, damage to the eyes, lower immunity and other hazards. 1. Poor skin condition: often stay up late may lead to poor skin condition, acne, dull skin, roughness, dark circles and other problems. 2. Damage to the eyes: patients who stay up late for a long time will cause eye damage and vision loss. If you stay up all night, there will be blurred vision and other serious consequences. 3. Lower immunity: often stay up late will cause patients’ biological clock disorders, and will affect the repair of the body’s organs, so that the body’s immunity decreased. Long-term stay up late will cause harm to the body in many ways, so try to avoid staying up late. When the body appears uncomfortable, you need to go to the hospital in time for treatment.