Definition
To exhaust oneself by working or engaging in activities from early morning until late at night, thereby getting insufficient rest.
She's been burning the candle at both ends to finish the project, working from early morning till late every day.
He's working two jobs and is constantly busy; this lifestyle of burning the candle at both ends is very detrimental to his health.
The students were burning the candle at both ends before the exam, leading to exhaustion.