O Docker. It's not the tryptophan. It's the carbs.
It has been demonstrated that ingestion of a meal rich in carbohydrates triggers release of insulin. Insulin in turn stimulates the uptake of large neutral branched-chain amino acids (LNAA) but not tryptophan (trp) into muscle, increasing the ratio of trp to LNAA in the blood stream. The resulting increased ratio of tryptophan to large neutral amino acids in the blood reduces competition at the large neutral amino acid transporter resulting in the uptake of tryptophan across the blood-brain barrier into the central nervous system. Once inside the CNS, tryptophan is converted into serotonin in the raphe nuclei by the normal enzymatic pathway. The resultant serotonin is further metabolised into melatonin by the pineal gland. Hence, this data suggest that "feast-induced drowsiness," and in particular, the common post-Christmas and North American post-Thanksgiving dinner drowsiness, may be the result of a heavy meal rich in carbohydrates which, via an indirect mechanism, increases the production of sleep-promoting melatonin in the brain.
13 comments:
...you know what?
What?
That's what
chicken butt?
Today, Tillerman, You gotta remember one thing: It's either you or the bird. What's it going to be?
Why do I get so sleepy reading this blog sometimes?
I fought the bird and the bird won.
O Docker. It's not the tryptophan. It's the carbs.
It has been demonstrated that ingestion of a meal rich in carbohydrates triggers release of insulin. Insulin in turn stimulates the uptake of large neutral branched-chain amino acids (LNAA) but not tryptophan (trp) into muscle, increasing the ratio of trp to LNAA in the blood stream. The resulting increased ratio of tryptophan to large neutral amino acids in the blood reduces competition at the large neutral amino acid transporter resulting in the uptake of tryptophan across the blood-brain barrier into the central nervous system. Once inside the CNS, tryptophan is converted into serotonin in the raphe nuclei by the normal enzymatic pathway. The resultant serotonin is further metabolised into melatonin by the pineal gland. Hence, this data suggest that "feast-induced drowsiness," and in particular, the common post-Christmas and North American post-Thanksgiving dinner drowsiness, may be the result of a heavy meal rich in carbohydrates which, via an indirect mechanism, increases the production of sleep-promoting melatonin in the brain.
ZZZZZZ
So is the Tillerman a fan of tryptophan?
That was a very complex answer, so I'll asssume this blog is high in complex carbohydrates.
Foods high in complex carbohydrates include breads, grains, and beans.
So, I must read this blog because it is the bread of life, because you drink things made from grain, and because sometimes you're full of beans.
...the answer is in your Tillermeister gmail address.
I don't know if it was the tryptophan but all the family was ready for bed by 9pm.
Post a Comment