I should not think overwork; I've never seen your theatre-business prove too much for you.
"Prince Fortunatus"
William Black
And then, if you only take care of your voice, and don't strain it by overwork, then you'll be able to come back to London and just command any engagement you may want."
"Prince Fortunatus"
William Black
2. How does overwork, or over-training, affect the heart?
"A Handbook of Health"
Woods Hutchinson