Health promotion has become one of the most important policy issues in recent Japan,
because its society has become an aging society. Behavioral economics has potential to be
a key factor to answer the issue. Concern about health impact of human behavioral side is
becoming central issue in health policy, such as procrastination, unhealthy habit, and so on.
Behavioral economics have developing with holding the psychological side of human behavior,
thus, it promote our understanding on these unhealthy habit. This paper reviews concerning
recent development on the behavioral economics aspects of health behavior.