Both cats and dogs can help alleviate depression in different ways, but generally speaking, dogs may be more effective in treating depression. Walking the dog gives owners the opportunity to interact with other dog owners, increasing social interaction and reducing feelings of loneliness. Dogs need daily walks and exercise, which forces owners to engage in outdoor activities and exercise, helping to alleviate depressive symptoms.

A cat's soft touch and gentle purr can have a soothing effect, reducing anxiety and stress. Compared to dogs, cats require less care and exercise, making them suitable for people who may lack energy or time. Whether cat or dog, the companionship of a pet can provide emotional support and psychological comfort to varying degrees.