Thanks Mike!
Cats are great at healing, and you still have eleven of 'em, right? Kelly's had none!
https://infinitespider.com/cat-purring-and-healing-bones/
Our sister #5 has a daughter with a weirdly broken foot bone that will take 3 months to heal, vs the usual 4 to 6 weeks, and I have proposed that they acquire a CAT to purr over this foot....

If scientists were able to mimic the purring of cats, and mechanically stimulate bones and muscles, even when a person was at rest, then the sound/vibrations could help induce bone growth, mitigate osteoporosis, and help with muscle loss/atrophy in elderly patients or even astronauts in space who face bone density and muscle loss due to weightlessness.Here is an article from NASA that found using short periods of time on vibrational plates helped prevent bone loss. Their research was also promising for post-menopausal women and preventing bone loss here on Earth too.

There are many patents pending for purring devices such as purr pillows. There is also one called the "Purr-like Vibration Device", which is meant to be used in therapeutic setting such as physical therapy or doctors offices.

Who needs to buy a purr pillow - you have a cat crew on hand! But do they sit on you?