Noun
a definite stable energy that a physical system can have; used especially of the state of electrons in atoms or molecules
Source: WordNetMy goal? To test out every diet and exercise regimen on planet earth and figure out which work best. I sweated, I cooked, I learned to pole dance. In the end, I lost weight, lowered my cholesterol and doubled my energy level. I feel better than I ever have. A. J. Jacobs
No. 1, these guys out here on this field. They keep my energy level up. They try hard, they don't complain about things - and I'd just like to be with them when things are good, and hopefully we can win a pennant together. Frank Robinson
I train for one-and-a-half hours every day in order to keep my energy level high. Jürgen Klinsmann
Eloquence consists of persuading people of things they desperately want to believe. Demagoguery, I suppose, is eloquence sliding to some least moral energy level. Lois McMaster Bujold
We didn't rehearse or play the songs to death before we recorded them, and that let us catch a freshness and energy level we've never really felt while making records. Edie Brickell
I think you should ride the line between fatigue and chaos. The chaos keeps the energy level and spontaneity maximized, while fatigue is just over the edge, and you should try to avoid it. Ted Nugent