Thank you for your response, it is helpful and leads me to the next resource which is the manufacturer of my pacer to understand it’s capabilities. Fortunately, I know who to call. I never considered the mechanism might have a fail safe built into it. My heart is strong as a muscle, and I have no other heart or vascular issues. It’s a strange thing to try to second guess my body and try to plan for care later in life. I know the Advance Directives help MD’s deal with families and satisfy lawyers mostly, but it’s not a bad thing to have to consider sickness in my body, and where we might go from here, and be grateful to the miracle of all it tries to do for me. I appreciate you reaching out to me, you have a great heart!