What is Peak Performance?

peak

n. [var. of Brit dial. pike, prob. < ON pic]

1 a pointed end or top, as of a cap, roof, etc.   2 a) the summit of a hill or mountain ending in a point, b) a mountain with such a summit  3 the highest or utmost point of anything  4 the point of greatest development, value, or intensity

performance

n.

1 the act of performing   2 functional effectiveness   3 deed or feat   4 a) a formal exhibition or presentation, as a play, b) one's part in this