““Yes, dear reader, that’s the other reason we cats purr. Arguably, it’s the most important reason: to make you happy. Purring is our V—our way of reminding you that you are loved and special, and that you should never forget how we feel about you, especially when you’re vulnerable. What’s more, purring is our way of ensuring your good health. Studies show that having a feline companion reduces stress and lowers the blood pressure of humans. Cat owners are significantly less likely to have heart attacks than people who live in a catless world.””