问答题 It is reported that Facebook could be a key in mapping which geographical areas have the most overweight and obese people. Researchers have found that the higher the percentage of people in a city or town with Facebook "interests" suggesting a healthy lifestyle, the lower that area’s obesity rate. At the same time, areas with a large percentage of Facebook users with television-related "interests" tend to have higher rates of obesity.

【正确答案】public health data

【答案解析】文章指出美国波士顿儿童医院的研究人员将脸书用户数据与全国和纽约市为重点的健康调查的数据进行比较后，得出了这些结论。人们在网上的“兴趣”可以帮助公共卫生研究人员预测、追踪和绘制地区肥胖率。由此可知，官方公共卫生数据和从脸书收集的信息之间的密切关联有望促进对区域卫生模式的研究。故空格处应填public health data。