Cat density correlates with higher national happiness levels

A study published in PLOS One, led by biologist Javier I. Borráz León from the Instituto Nacional de Psiquiatría Ramón de la Fuente Muñiz, has identified a correlation between cat density and national happiness levels across 93 countries.

The research analyzed data regarding subjective well-being, economic indicators, and the prevalence of the parasite Toxoplasma gondii. Findings indicate that countries with a higher number of cats per capita tend to report higher levels of life satisfaction and happiness.

Interestingly, the study noted a paradox regarding the parasite Toxoplasma gondii, which is linked to various psychological issues. Countries with higher cat densities actually showed lower rates of infection. Researchers suggest this may be due to higher standards of living in wealthier nations, where cats are more likely to live indoors, receive professional veterinary care, and consume processed food, thereby reducing parasite transmission.