LERULI.com on Twitter: "Celebrated #Thanksgiving with a huge 🦃 and wonder why you might be so tired today? Urban myths would suggest #Tryptophan is to blame https://t.co/08C7sGoiDS - but according to https://t.co/7DmHfrq4y7
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Tryptophan - Wikipedia
Tryptophan - The School of Biomedical Sciences Wiki