And there are many good reasons for that (11 at least, according to this article).
They are soothing, since they can be so quiet, and teach by example : we should takemore naps ! But their purring is also good for the human heart and blood pressure, and there are even therapy cats !
This five-year-old girl, Iris, was diagnosed with autism, and she has acquired better social skills since her new friend, Thula, has arrived :
If you want to know more about this beautiful friendship, read this.