<unk>  is the desire to eat food, sometimes due to hunger. Appealing foods can stimulate<unk>  even when hunger is absent, although<unk>  can be greatly reduced by satiety.<unk>  exists in all higher life-forms, and serves to regulate adequate energy intake to maintain metabolic needs. It is regulated by a close interplay between the digestive tract, adipose tissue and the brain.<unk>  has a relationship with every individual's behavior.<unk> ve behaviour also known as approach behaviour, and consummatory behaviour, are the only processes that involve energy intake, whereas all other behaviours affect the release of energy. When stressed,<unk>  levels may increase and result in an increase of food intake. Decreased desire to eat is termed anorexia, while polyphagia (or "hyperphagia") is increased eating. Dysregulation of<unk>  contributes to anorexia nervosa, bulimia nervosa, cachexia, overeating, and binge eating disorder.
Appetite
Sleep and weight
Worried well 
Wellness 
Body odor
Body image 
Sadness
Thirst