I have no desire to tell strangers the reason. Informing them of the lack of heartbeat is usually to forestall any inevitable questions, as it can be noticeable in certain circumstances, but the reason why is not relevant knowledge.
[.......]
To answer one such inevitable question: I am not dead or a reanimated corpse. I still have a pulse and need to breathe.
no subject
[.......]
To answer one such inevitable question: I am not dead or a reanimated corpse. I still have a pulse and need to breathe.