Fear and stress are responses essential for survival as they prepare the body to react in dangerous situations. Examples of stressful situations that products can help dogs is: settling into a new home, car travel, thunderstorms, fireworks, lifestyle changes (moving house, new puppy, new baby), veterinary visits, nail clipping, post - surgery, boarding or any separation from owners. Cats are very territorial in nature and may experience stress from changes that threaten their territory or how they use their time and space in that territory. For example, overpopulation in urban areas can cause stress and bullying due to territorial issues, multi-cat households where they are forced to develop relationships that are incompatible, boarding in catteries or veterinary hospitals, rehomed feral cats, cats from rescue centres, moving house or unsocialised cats.