Paragraph FourHow much of the da

Paragraph FourHow much of the day kids should spend in front of TVs, smartphones, tech? The WHO says for young kids, screen time needs to be limited to an hour a day or less. Experts say too much screen time early in life is associated with delays in language skills, social skills, even the brain's ability to think.Too much screen time is h______ to kids.
【正确答案】：harmful