overexert
- v exert (oneself) excessively and go beyond one's strength
don't overexert yourself when exercising!
- Even while the heart is being asked to overexert, carbon monoxide from cigarette smoke combines with red blood cells and decreases their capacity to carry oxygen.
- Use enough weight to tire yourself out, but don't overexert or strain.
- But the trouble with such sports is that businessmen tend to overexert and fret over their performance.