My heart was light, too, unburdened of the weight of all those hard, undigestible feelings that I'd suppressed for so long.

我的心也轻松了，卸去了所有自己压抑了这么久无法释怀的愤懑情绪。

youdao

The main culprit in the cinnamon powder is actually derived from tree bark and contains cellulose, an undigestible fiber capable of producing a strong inflammatory response in lung tissue, leading to long term wheezing and a chronic cough, potentially placing patients at further risk for bouts of pneumonitis or even aspiration pneumonia.

FORBES: An ER Doctor's Perspective on "The Cinnamon Challenge": Don't Even Think of Doing It