Perceval said:
I've noticed the increased or "pounding" heartbeat sometimes when I smoke.
This, Don Genaro's and Data's remark about needing to smoke less reminded me of something on
The Polyvagal Theory. I can't find the exact quote right now, but maybe someone else can find it. FWIW, as I understand it, the smart vagus is insulated and coated by a myelin sheath, which is composed mainly of fat. I wonder if, with the KD, myelin becomes more efficient somehow (healthier fat in bigger quantities, free of toxins -which normally get accumulated in the fat-), and therefore allows for the vagus nerve to do a better job. If so, could it be that the body naturally starts producing more acetylcholine? This might be waaay oversimplified of off, but I thought I'd just trow it out there.
The higher (right) branch of the vagus nerve also regulates our heartbeat. I noticed the same as Laura, and not being related to smoking in particularly.
Laura said:
I, too, have noted a bit of "fluttery speed" to the heart at odd moments. Nothing like the palpitations I used to have, but yeah, it's there. I suspect it is because the heart is used to having such bad fuel and now it gets its preferred fuel and it's have to have a carburator adjustment or something.
And this is what is a bit puzzling and might contradict completely my idea above. Because acetylcholine is usually
known to LOWER the heartbeat, not raise it. So maybe it has nothing to do with acetylcholine at all, and it's different for everybody depending on how our hearts have this "carburator adjustment". I don't know. Any ideas? I can't explain why some people would have the "pounding heartbeat" when smoking...