18 Tricks to teach your body...

I dunno about the rest of those but this one from my experience is a bunch of horse poo poo.
I had nearsightedness for a long time, and have tried everything from herbs to self-suggestion. There are different types of myopia and only one of them has (supposedly) to do with muscles habitually tensing, and to date I’m not aware of documented cases of people curing it other than with surgery.