Are you the board owner ? If not, them stop trying to control the discussion.
I think threads rarely ever remain focussed on just what the OP of a thread says. Threads are living and dynamic things, the OP merely lays the seed. It is futile trying to control how a discussion grows, as futile as it is for a parent to control how their child grows.
In any case this discussion is not really veering that far from the subject matter of the ‘bodies’ A lot of useful and interesting information, and related questions have been shared by everybody.