I agree with LFW: One way or another, education is the way to go. Could you take him to a doctor's appt with you? How about some reading about bp for him? Clearly he wouldn't want you to be sick...
Co-Moderator, Bipolar Forum
It is a melancholy of mine own, compounded of many simples, extracted from many objects, and indeed the sundry contemplation of my travels, in which my often rumination wraps me in a most humorous sadness. -- William Shakespeare