“Head down” แปลว่าอะไร?

อันนี้เป็นเนื้อทั้งหมด On a dark desert highway, cool wind in my hair Warm smell of colitas, rising up through the air Up ahead in the distance, I saw a shimmering light My head grew heavy and my sigh

จากบทความ 15. こんにゃくは太りません。 You won’t put on weight from konjac. (≠ Konjac won’t put on weight). These sentences come about by the “head” of an attributive predicate being