[Cyclic oro-alimentary disorders]

Eating behaviours have been changing in our society for at least twenty years. Thus, they represent a good indicator of the functioning of a society or a person. Beyond these recent sociocultural variations, recent clinical and research data, particularly in chronobiology, showed clearly the influence of hormonal or seasonal changes in our eating behaviours. Actually, we observed that an important proportion of these cyclic turmoils can fit into other phenomena and cyclic pathologies: premenstrual syndrome, seasonal affective disorders, bipolar disorders, binge eating.