Bozo et al. (2009) investigated the anxiety of fearing death and compared it to various age groups in relation to health-promoting behaviors. Researchers analyzed the data by using the terror management theory and found that age had no direct effect on specific behaviors. The researchers thought that a fear of death would yield health-promoting behaviors in young adults. When individuals are reminded of their own death, it causes stress and anxiety, but eventually leads to positive changes in their health behaviors. Their conclusions showed that older adults were consistently better at promoting and practicing good health behaviors, without thinking about death, compared to young adults. Young adults were less motivated to change and practice health-promoting behaviors because they used the selective exposure to confirm their prior beliefs. Selective exposure thus creates barriers between the behaviors in different ages, but there is no specific age at which people change their behaviors.