"Staying up late is harmful to one's health."

This statement is based on scientific research showing that staying up late and disrupting the natural sleep-wake cycle can have negative effects on physical and mental health. It can lead to decreased immunity, increased risk of obesity, cardiovascular disease, and depression.

Examples:

Lack of sleep has been pnked to a higher risk of chronic diseases such as obesity, heart disease, and diabetes. (睡眠不足与肥胖、心脏病和糖尿病等慢性疾病的风险有关。)
Chronic sleep deprivation can impair cognitive function, leading to poor performance at work or school. (长期的睡眠不足会损害认知功能，导致工作或学校表现不佳。)