Don’t get too close to a tired teen
;you could start losing sleep as well.When one teenager starts sleeping less,
her friends and others in her social {{U}} (67) {{/U}} soon lose
sleep, too, according to new research. Our social networks can {{U}} (68) {{/U}} our behaviors and moods. Political scientist James Fowler of the University of California has studied these effects and previously found that obesity, smoking, and {{U}} (69) {{/U}} happiness can spread through networks of people {{U}} (70) {{/U}} based on their relationships. Fowler {{U}} (71) {{/U}} his study of a network of more than 8000 7th-to 12th-grade students and their sleeping and smoking {{U}} (72) {{/U}}. He and colleagues {{U}} (73) {{/U}} a web of connections between each student and his or her friends. In one of these friend webs, a gang of sleepless boys A. bicycle B. recycle C. circle D. cycle 我来回答: 提交
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