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purring cat could heal your bones and muscles.

Posted by on May. 24, 2013 at 2:25 PM
  • 3 Replies
Leslie A. Lyons, an assistant professor at the School of Veterinary Medicine at the University of California, Davis, explains.Over the course of evolution, purring has probably offered some selective advantage to cats. Most felid species produce a "purr-like" vocalization. In domestic cats, purring is most noticeable when an animal is nursing her kittens or when humans provide social contact via petting, stroking or feeding.Although we assume that a cat's purr is an expression of pleasure or is a means of communication with its young, perhaps the reasons for purring can be deciphered from the more stressful moments in a cat's life. Cats often purr while under duress, such as during a visit to the veterinarian or when recovering from injury. Thus, not all purring cats appear to be content or pleased with their current circumstances. This riddle has lead researchers to investigate how cats purr, which is also still under debate.Scientists have demonstrated that cats produce the purr through intermittent signaling of the laryngeal and diaphragmatic muscles. Cats purr during both inhalation and exhalation with a consistent pattern and frequency between 25 and 150 Hertz. Various investigators have shown that sound frequencies in this range can improve bone density and promote healing.This association between the frequencies of cats' purrs and improved healing of bones and muscles may provide help for some humans. Bone density loss and muscle atrophy is a serious concern for astronauts during extended periods at zero gravity. Their musculo-skeletal systems do not experience the normal stresses of physical activity, including routine standing or sitting, which requires strength for posture control.Because cats have adapted to conserve energy via long periods of rest and sleep, it is possible that purring is a low energy mechanism that stimulates muscles and bones without a lot of energy. The durability of the cat has facilitated the notion that cats have "nine lives" and a common veterinary legend holds that cats are able to reassemble their bones when placed in the same room with all their parts. Purring may provide a basis for this feline mythology. The domestication and breeding of fancy cats occurred relatively recently compared to other pets and domesticated species, thus cats do not display as many muscle and bone abnormalities as their more strongly selected carnivore relative, the domestic dog. Perhaps cats' purring helps alleviate the dysplasia or osteoporotic conditions that are more common in their canid cousins. Although it is tempting to state that cats purr because they are happy, it is more plausible that cat purring is a means of communication and a potential source of self-healing.A


http://www.scientificamerican.com/article.cfm?id=why-do-cats-purr
by on May. 24, 2013 at 2:25 PM
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Replies (1-3):
gypsy_rose
by Kandy on May. 24, 2013 at 2:25 PM
I hate how my copy paste does not keep paragraphs seprate.....
firespurity
by Ruby Member on May. 24, 2013 at 2:31 PM
my vet says they regenerate some bone mass. I have a Scottish fold that had to have her femur head removed after she shattered it in a car accident. I was told she will at some point grow much of it back, but itwill be a ssofter type of material.
gypsy_rose
by Kandy on May. 24, 2013 at 2:41 PM
The scientists are saying it is because of the purr. That the purr may help human boneloss.


Quoting firespurity:

my vet says they regenerate some bone mass. I have a Scottish fold that had to have her femur head removed after she shattered it in a car accident. I was told she will at some point grow much of it back, but itwill be a ssofter type of material.

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