this would help to corroborate the hypothesis of the increasing blood pressure/ intracranial pressure when you talk about flashing lights at the very end of a breath hold.
any scientific data on that so far?
yours pat
p.s. be careful not to let the lights go off too often...
p.p.s. when you hit the submit buttom twice simply edit - delete.
any scientific data on that so far?
yours pat
p.s. be careful not to let the lights go off too often...
p.p.s. when you hit the submit buttom twice simply edit - delete.