It would be nice and much easier if for all the tough questions in life there were black and white answers. Unfortunately, life isn't so cut and dried. Should people with osteopenia or osteoporosis avoid yoga? Yin yoga? Any form of exercise? If we wanted to be cautious, we could say - anyone with osteopenia or osteoporosis should avoid yoga, but unfortunately, such a dogmatic assertion may make people far worse. It could make people fragile.
I have written in the past about how some yoga teachers, out of the best intentions, actually do a grave disservice to their students by making the practice too easy. They are fragilizing students. [Read my article on
Antifragility to understand this important concept.]
Having said the above, this topic has been raised in the past, so rather than repeat my thoughts here, I will refer you to several other threads:
