I've been doing meditations with Dr Joe Dispenza who talks about the genetic shifts from meditation. I think a consistent practice can regulate genes.
I have occasionally experienced miraculous healings over 8 years of meditation.
- I healed a 2 year knee injury
- I improved my eyesight from needing reading glasses to no longer needing them
- I was allergy free for a year after a couple of months of meditation.
There is a lot possible with meditation.