Cats may have a reputation for independence, but emerging research suggests we share a unique connection with them – fuelled by brain chemistry.

The main chemical involved is oxytocin, often called the love hormone. It’s the same neurochemical that surges when a mother cradles her baby or when friends hug, fostering trust and affection. And now studies are showing oxytocin is important for cat-human bonding too.

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Oxytocin plays a central role in social bonding, trust and stress regulation in many animals, including humans. One 2005 experiment showed that oxytocin made human volunteers significantly more willing to trust others in financial games.

Oxytocin also has calming effects in humans and animals, as it suppresses the stress hormone cortisol and activates the parasympathetic nervous system (the rest and digest system) to help the body relax.

Scientists have long known that friendly interactions trigger oxytocin release in both dogs and their owners, creating a mutual feedback loop of bonding. Until recently, though, not much was known about its effect in cats.

Cats are more subtle in showing affection. Yet their owners often report the same warm feelings of companionship and stress relief that dog owners do – and studies are increasingly backing these reports up.........

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