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.
As pessoas que lavavam os dentes e usavam fio dental não eram necessariamente as pessoas que estavam muito assustadas com o que poderia acontecer -- eram pessoas que simplesmente sentiam que tinham a capacidade de modificar o seu comportamento.