Why Do Cats Purr
Discover the mysterious science behind why cats purr and what they might be trying to tell you when they do.

Too Long; Didn't Read
Cats purr at 25-150 Hz frequencies (which promote healing) not just when happy, but also when stressed, in pain, or hungry. Their purring may have therapeutic effects for humans too, including lowering stress and blood pressure.
Why Do Cats Purr?
Cats purr for a variety of reasons, and it's not just when they're happy. This mysterious sound is created by the rapid vibration of their vocal cords, occurring during both inhalation and exhalation.
The Surprising Science
Researchers have discovered that cats purr at a frequency of 25-150 Hertz, which happens to be the same frequency range that promotes tissue regeneration and bone healing. This might explain why cats recover from injuries faster than many other animals.
Communication Tool
While purring often indicates contentment, cats also purr when they're:
- Stressed or anxious
- In pain
- Hungry or wanting attention
- Comforting their kittens
- Self-soothing during recovery
Healing Properties
Perhaps most fascinating is that cats' purrs might actually have therapeutic effects, not just for themselves but for humans too. Studies suggest that the vibrations from purring can:
- Lower stress levels
- Decrease blood pressure
- Reduce the risk of heart attack
- Strengthen bones
- Help wounds heal faster
So next time your feline friend curls up on your lap and starts purring, remember they might be providing you with a form of natural therapy!
More Articles

How can a dead body sometimes get goosebumps?
It’s a chilling sight that blurs the line between life and death—a corpse covered in goosebumps. Uncover the bizarre scientific reason for this strange post-mortem phenomenon.

What is the secret code hidden in the color of your bread bag's plastic clip?
That colorful plastic clip on your bread bag isn't a random choice; it's a secret baker's code that reveals the freshest loaf on the shelf.

Why do small floating things like cereal pieces clump together in a bowl of milk?
Ever wondered about the invisible force that herds your last few cereal pieces into a floating clump? It’s not a breakfast conspiracy, but a captivating lesson in surface tension happening right in your bowl.