Women's World, July 28th, page 3 article about vibrations from a cat's purr improve bone density and healing. Since I'm a dog person and not a cat person, I didn't want to be left out (smile). Apparently, a domestic cat usually purrs at a frequency of 25 and 50 Hz. Research (not specified) demonstates that exposure to a frequency of 25 Hz increases bone density by at least 20%. I do believe that pets can reduce stress, but improving bone density?



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