In recent years, the use of mobile phones and computers has led to an increasingly blurred boundary between work and life, and people's average sleep time has been decreasing  Staying up late has become the norm in modern life  Scientific research shows that staying up late is detrimental to your health, and lack of sleep is more than just yawning
Lack of sleep will reduce the level of fat-regulating leptin hormones in the body, and increase hunger hormones, which can easily lead to overeating and weight gain.
 Some scientists have suggested that people should abide by the law of work and rest