Dear Hubby's (Type B) blood pressure and heart rate have been going down, down, down; heart rate down below 50 most of the time, to the point he woke up in the middle of the night with the sound of blood rushing in his ears, took BP and found heart rate was 42! Scary! He had stopped his BP med (with Dr approval), but pulse was STILL very low. So he asked if there was an herb he could take that was a heart stimulant. Google-google ... we ended up him taking ONE YOHIMBE pill. Heart rate straightened up to 57 or so and continued great all day and on to next day (today). Only "down side," from my point of view, was a bit of slightly "pressured speech" and just some little signs of a kind of "hyper" behavior he sometimes gets into, but has not been doing (much) for quite awhile now (probably thanks to Type B Diet).
ANYWAY, what with all the googling, this page has (at its bottom) a table of foods high in Tyramine which should NOT be eaten by people on MAOI's (DH ain't on MAOI's) (but maybe 'cause he's a Type B, it's LIKE he's on MAOI's?
and this chart has a whole lot of things on it that Type B's are not s'posed to eat according to BTD.http://dietitian.com/drugnutr.html
There's some kind of thing going on with
Tyramine is generally produced by decarboxylation of the amino acid tyrosine during fermentation of food products. All protein-rich foods which have been matured will contain more tyramine depending on the temperature and how long they have been stored.http://en.wikipedia.org/wiki/Norepin...atural_sources
Protein from such sources as meat, nuts and egg whites are broken down by the digestive system into amino acids such as l-tyrosine, a precursor to dopamine, which is in itself a precursor of norepinephrine.http://en.wikipedia.org/wiki/Norepinephrine
As a stress hormone, norepinephrine affects parts of the brain where attention and responding actions are controlled. Along with epinephrine, norepinephrine also underlies the fight-or-flight response, directly increasing heart rate, triggering the release of glucose from energy stores, and increasing blood flow to skeletal muscle.
However, when norepinephrine acts as a drug it will increase blood pressure by its prominent increasing effects on the vascular tone from a-adrenergic receptor activation. The resulting increase in vascular resistance triggers a compensatory reflex that overcomes its direct stimulatory effects on the heart, called the baroreceptor reflex, which results in a drop in heart rate called reflex bradycardia.
You know, the more I read this kind of stuff, I wonder whether there might be a FOOD-related cause for "unrest" in the Middle East ... they eat a lot of fava beans over there, eh?? for instance ...
I would like to know if Type B's in general are sensitive to foods high in tyramine?