A<unk>  (also called selective hunger) is an intense desire to consume a specific<unk> , and is different from normal hunger. It may or may not be related to specific hunger, the drive to consume particular nutrients that is well-studied in animals. In studies of<unk> s, chocolate and chocolate confectioneries almost always top the list of<unk> s people say they crave; this<unk>  is referred to as chocoholism. The<unk>  of non-food items as<unk>  is called pica.
Food craving
Fear of flying
Sundowning
Fear of trains
Fear of needles
Thirst
Fidgeting
Sniffing 