Here is a link you can use to learn more.
So, apparently cats aren't just great cuddlers, they help you medically. Research has shown the calming sound of a cat purring lowers your blood pressure and reduces stress. But, cats don't just pur when they're happy,“You can have cats that are happy and content purring, but also a cat that’s injured or sick will purr,” Cromwell-Davis explained. Cats also help with your compassion gentleness skills. Studies show that children that grow up with a cat grow more in that area.
Did you know that cats and their humans can communicate with each other? Dr. Dennis Turner has used Information Theory to prove it. According to the data Dr. Turner has determined that individual cat and human pair uses a wide variety of behaviors to communicate. Some cats will rub their heads on you while others will rub their sides, those are ways they communicate with us. Cats will also vocally meow to talk to us when they need something. My cat scratches on the door when she wants to leave a room or enter one and she follows me around and meows when she's hungry, those are ways she communicates with me.
Also, cat meows were not initially created for cats to communicate with each other. In fact, they were created for cats to communicate with humans.
Just look at this cat trying to communicate with their owner.......