Breathlessness is a common term familiar to all of us. Who hasn't felt breathless when running to catch a bus or rushing up several flights of stairs? It is a sensation we all recognise and yet most people give it very little consideration. Until I became ill with a respiratory disease (lymphangioleiomyomatosis, or LAM), I never gave breathlessness, or indeed breathing, more than a passing thought.

中文翻译：

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喘不过气来：客观测量与主观经验之间的裂痕

呼吸困难是我们所有人都熟悉的一个常用术语。谁在跑上公车或冲上几次楼梯时还没有喘不过气？这是我们大家都认可的一种感觉，但是大多数人很少考虑它。在我因呼吸系统疾病（淋巴管平滑肌肌瘤病或LAM）生病之前，我从未给过喘不过气来，甚至没有呼吸，只是经过了一个短暂的思考。