Noun
Organs that are necessary for life; more especially, the heart, lungs, and brain.
Fig.: The part essential to the life or health of anything; as, the vitals of a state.
Source: Webster's dictionaryThe pavement slabs burn loose beneath my feet, A chafing savage, down the decent street; And passion rends my vitals as I pass, Where boldly shines your shuttered door of glass. Claude McKay
I read that when cats are cuddling and kneading you, and you think it's cute, they're really just checking your vitals for weak spots. Kandyse McClure
When she (Maria) had come abreast of the little island of Mistress Masham's Repose, she began to feel piratical. Swouns and Slids, she said to herself, but you could slap her vitals if she did not careen there, and perhaps dig up some buried treasure while about it. T. H. White
The number of substitutes for fine and clean thinking the world provides positively gnaws at one's vitals. Harold Laski
It hadn't had to take the form of this terrible bubble. It might as easily have been a sudden sharp burst behind his eyes or a slower, subtler gnawing at his vitals. But he'd known it was coming, as every man knows and tries to forget it is coming. Algis Budrys
Android Developers Blog: Android vitals: Increase engagement and installs through improved app performance developer. Source: Internet