The people who brushed and flossed their teeth were not necessarily the people who were really scared about what would happen -- it's the people who simply felt that they had the capacity to change their behavior.
那些勤刷牙，用牙线的人， 并不一定是 那些害怕不良后果的人-- 他们是那些认为自己 有能力改变自己行为的人。