Why Do Cats Purrs Vibrate at That Specific Frequency?

When your cat sits on your lap and rumbles like a tiny engine, they are not just saying 'I am happy.' They are actually giving you a healing massage. A cat's purr vibrates at a special speed that is good for fixing broken bones and making people feel calm. This sound happens between 20 and 140 times every second. Scientists found that this same speed helps build strong bones in humans too! So when your kitty curls up next to you, they are helping your body heal from the inside out. It is like their body has a built-in power tool for fixing hurts and making things better.