It has been theorized that cats feel so content in boxes because they reduce stress. In 2014, researchers from the University of Utrecht decided to put this theory to the test by conducting a study.
What they have found will not surprise you — laying in boxes do, in fact, reduce cats’ stress levels. The researchers carried out a study at a Dutch shelter, involving 19 shelter cats, 10 of which had a box with them.
The scientists stated in their study: “Stressful experiences can have a major impact on the cats’ welfare and may cause higher incidences of infectious diseases in the shelters due to raised cortisol levels causing immunodeficiency. Though several studies showed a preference for hiding places and stress-reducing effects of hiding boxes on cats in combined studies, none of these studies determined if proper hiding enrichment would be effective in a quarantine cattery.”
Immediately, they noticed a difference between the group of cats who were kept with a box and those who were not provided the box. Cat stress level was determined by using the Kessler and Turner Cat-Stress Score (CSS). After a few days, the cats with a box recorded a lower stress level than a non-boxed group of cats. A few weeks later, both groups recorded the same CSS.
The scientists concluded: “The hiding box appears to be an important enrichment for the cat to cope effectively with stressors in a new shelter environment the first weeks after arrival.” Scientists stated that further study is needed to determine what effect the hiding box has on house cats, its long term effects, and correlation with outbreak frequencies of infectious diseases.
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