While the presence of a feline can reduce stress and promote the secretion of hormones related to attachment, these benefits depend above all on the individual context, lifestyle, and the quality of the relationship formed between the animal and its owner.
Social isolation: the defining problem of our era
A wide systematic review of 24 studies conducted among diverse populations and published in Social Psychiatry and Psychiatric Epidemiology shows that cats help mitigate certain forms of social isolation without fully resolving experienced loneliness. The researchers note that people who feel an emotional void are more likely to adopt an animal. The presence of a cat thus fills some interaction needs. But its effectiveness against loneliness fundamentally depends on the owner’s personality and living environment.
Biologically, daily interactions with a cat (petting, play sessions, calm presence or purrs…) can trigger measurable responses. Work from a team of Japanese researchers highlights that a harmonious relationship is accompanied by a reduction in cortisol, the stress-marker hormone. After a trying day or during moments of vulnerability, these exchanges foster emotional calm and a stabilization of heart rate.
Oxytocin, the key to reciprocal bonding
The emotional closeness between humans and cats also stimulates the secretion of oxytocin, commonly known as the “bonding hormone.” Studies published in particular in the journal Animals and on ScienceDirect confirm that this hormonal response activates during moments of shared affection. In turn, oxytocin levels rise in the cat as well, provided that the bond developed rests on a secure attachment style for the animal.
That said, owning a cat is not a guarantee of unconditional happiness and can even become a source of anxiety. Financial burden, managing behavioral issues (such as repeated nighttime awakenings), or worry about the animal’s illness weigh heavily on psychological balance. Moreover, the deep attachment to the feline can greatly destabilize the owner during periods of separation or at the time of the animal’s death.
Unexpected biological interactions
Beyond the purely mental sphere, living with a cat shapes the body in a distinctive way. A scientific study published on the PLOS ONE platform highlighted notable variations in the composition of the gut microbiome among cat owners, affecting certain bacteria linked to nutrient metabolism. While the exact mechanisms remain to be clarified, this shows that the human-cat relationship extends to complex biological processes.
In the end, the scientific literature emphasizes that only a balanced attachment and a healthy relationship provide genuine emotional support. So much so that other works, such as a study published in Scientific Reports in 2022, suggest that simply daily contact with nature or listening to birdsong can sometimes be even more beneficial for psychological well-being than daily feline companionship.
