Lead
noun
The kanji and the word are exactly the same. That means they share meanings as well.
Lots of lead, all in bullet form. That's what it was like in nam, 'arry" (なまり).
今日はすごくやる気が無くて、体が鉛のように重く感じる。
I’m so unmotivated today, my body feels as heavy as lead.