A cat’s purr vibrates at a specific frequency range.
Why is it thought to be therapeutic?

Question

Accepted Answer

25–150 Hz — the same frequency shown to promote bone density and tissue healing. — Studies on injured cats found they purr while resting; theory says it’s literal self-repair. Yes, your lap really is a healing device.

A cat’s purr vibrates at a specific frequency range. Why is it thought to be therapeutic?