Research explores links between pet ownership and mental health

A meta-analysis of 17 studies led by psychiatrist John McGrath has identified a statistical correlation between cat ownership and an increased risk of developing disorders related to schizophrenia. Researchers from the Queensland Centre for Mental Health Research emphasize that this correlation does not imply causation; owning a cat does not cause schizophrenia.

One hypothesis suggests the role of Toxoplasma gondii, a parasite associated with cats that can be transmitted to humans through contact with infected feces or undercooked meat. Further research with larger, representative samples is required to understand the underlying mechanisms.

Separate psychological studies from the University of Texas at Austin and Carroll University suggest that pet preference may reflect personality traits. Dog owners tend to be more sociable, organized, and extroverted, while cat owners often exhibit higher openness to new experiences, emotional sensitivity, and introverted tendencies.