上班族午飯后回到公司“飯氣攻心”，容易打瞌睡？俗話說“飽懶餓新鮮”——我們可能都有這樣的感覺，那就是饑餓的時候頭腦敏銳，而飽餐之后很容易犯困。人吃飽了飯，血液集中去胃部工作，腦部血液供應減少，頭就有點昏，人就想睡覺。

You've just finished a big meal, and you're stuffed. You're thinking of taking a walk or even a stretch before clearing the table, but the thought of just getting out of your chair seems like a challenge.
剛吃了一頓大餐，肚里飽飽的，正想著收拾桌子前散散步做做運動，但似乎困得都癱在椅子上了。

The idea of taking a snooze on the couch seems more and more appealing.
此時你越來越想在沙發上小睡一會兒。

Sounds familiar? There's a name for it: It's called postprandial somnolence -- commonly referred to as "food coma." The phenomenon refers to the tired, sleepy feeling that many of us experience after eating a big meal.
聽起來很熟悉？這就是餐后困倦，一般稱為“食物昏迷”，指的是在大吃一頓后感到昏昏欲睡，我們很多人都有體會。

Food coma refers to the feeling of listlessness, bordering on sleep, that one feels after eating a large meal, often caused by a rush of blood to the stomach and intestines during food digestion.
“食物昏迷”指的是在飽餐一頓之后感到無精打采，困倦難耐，通常是因為在食物消化過程中血液大量涌向腸胃的緣故。

You're not at risk of falling into a food coma if you're just having a few bites of a snack, though.
但如果你只是吃了幾塊零食，就不用擔心陷入“食物昏迷”。

（中國日報網英語點津 yaning）