From Purring Cats to Birdsong: How Sound and Frequency Heal Our Animals and Us
Quick Answer Cats purr between 25 and 150 Hz, a frequency range science links to pain relief, lower blood pressure, and bone healing. Dogs relax with classical music and get more anxious with heavy metal. Birdsong sits in the 1,000 to 8,000 Hz range, which the human nervous system reads as a safety signal, cutting…

