Cats Could Help Our Brains Age Better, Researchers Say

Owning a pet, be it a cat or a dog, has previously been linked to lower heart disease risk. This is especially true for cat owners aged between 40 and 64.

Our feline friends may also reduce stress and boost our mood.

As if they don’t do enough for us already, researchers from the University of Bath, Auburn College of Veterinary Medicine in the US, and École Nationale Vétérinaire de Toulouse in France have said they might help us to age better too.

Their paper, published in the journal Biology Open, reads: “Pet cats may inform human ageing since humans and cats age similarly and they develop health challenges that mirror those observed in humans”.

Unlike a lot of lab animals, they added, cats tend to live long enough to develop age-related brain changes, like those seen in humans.

And, on the flip side, because they live a lot shorter lives than us, we can study their ageing at a much faster rate than we could in people.

The researchers used a biological model which looked at how multiple species age at a physical level.

They tracked 3,754 data points – like MRI (not CAT, sadly) scans, blood samples, and developmental milestones – gathered across human, cat, and other mammal species.

They found that cat and human brains seem to age remarkably similarly. Both species experience age-related neurodegeneration.

Like us, cats age in bursts. And they reach the equivalent of human old age: a teenage cat is the rough equivalent of a person in their 80s, ageing-wise.

“It was interesting to see that cats show patterns of age-related brain atrophy similar to those observed in humans,” said PhD candidate Brier Rigby Dames, who was involved with the research.

“These findings add to growing evidence that companion animals can provide valuable insights into ageing.”

Speaking to the University of Bath, the study’s co-author, Dr Ryan Gibson, said that more and more pet owners are sending their cats in for increasingly detailed scans as they age.

This, he said, might provide an exciting opportunity.

“This expanded clinical access creates meaningful opportunities for translational research (research that bridges the gap between scientific findings and healthcare), improving our understanding of aging and neurologic disease in ways that can benefit both feline and human patients,” he said.

For her part, Brier Rigby Dames said: “There’s potential to develop large-scale veterinary health databases for companion animals, analogous to human health databases such as the UK Biobank.

“These kinds of resources could enhance our ability to study ageing and disease using real-world clinical and owner-reported data collected across species.”