如果流行病学家能介入玩家众多的游戏，他们就可以观看玩家面临不同种类危险时，行为是如何变化的。
If epidemiologists had access to a heavily populated game, they could watch how players' behavior changes in response to variations in the risks they face.
约翰霍普金斯大学布隆伯格公共卫生学院的社会流行病学家托马斯·格拉斯说：“大多数专家都认为这些变化与环境有关。”
"Most experts agree that the changes were related to something in the environment," says social epidemiologist Thomas Glass of The Johns Hopkins Bloomberg School of Public Health.
洛杉矶南加州大学社会流行病学家特蕾莎·塞曼是同一研究项目的一员，她发现，70岁以上的人群的自尊心和压力之间存在联系。
As part of the same study, Teresa Seeman, a social epidemiologist at the University of Southern California in Los Angeles, found a connection between self-esteem and stress in people over 70.
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