Does having a pet benefit your health and longevity?

A small qualitative study of 14 community-dwelling older adults (aged 65 and over) shows that people themselves identify four ways in which a pet contributes to their wellbeing: comfort and a sense of security, more social contact, more daily structure, and a meaningful role in life¹. These are self-reported experiences, not measured clinical outcomes. Because the group is so small, the results cannot simply be generalised to the broader population.

Somewhat broader indications come from a 2015 review article, which concludes that both pet ownership and brief human-animal interaction are associated with better cardiovascular measures and fewer feelings of loneliness². Quasi-experimental research suggests this association may also be causal. Nevertheless, large randomised controlled trials with a clearly demonstrated biological mechanism are lacking, which means the strength of the evidence remains limited.

The available sources say nothing about longevity or mortality. On the basis of these studies, no statement can be made about whether owning a pet helps you live longer. That is an important distinction: greater wellbeing and possibly more favourable cardiovascular measures do not automatically translate into a longer life.

Practical considerations also belong in the equation. Pets require time, money and physical energy, and for frail older adults the care involved can become a burden rather than a support. Allergies, fall risk and infection risk are real points of concern that are not covered extensively in the available sources, but they certainly deserve to be weighed.