The amount a teenager sleeps is associated with how likely they are to engage in risky and suicidal behavior, says a new study.
원문출처 : https://www.cnn.com/2018/10/01/health/sleep-risky-behavior-teens-study/index.html
원문출처 : https://www.cnn.com/2018/10/01/health/sleep-risky-behavior-teens-study/index.html