The Feliway Diffuser aids in alleviating signs associated with fear and stress in kittens and cats. When there are changes in the cat's environment (e.g. moving house, renovations or building work, a new baby or pet, visitors or the loss of a feline or human companion), or if a cat is scared (e.g. in multicat households, fireworks or thunderstorms, visits to the vet or boarding), a state of disquiet or stress may develop. This state can be conveyed by changes in behaviour, such as urine marking, vertical scratching, loss of appetite and refusal to play and to interact. In these situations, the Feliway Diffuser can be used to restore the natural balance. If a behavioural problem is due to the cat feeling fearful or stressed then Feliway will help reduce this behaviour, especially If used in conjunction with behavioural modification therapy. If the problematic behaviour is unrelated to stress, Feliway will have no effect.