Specifically, cardiorespiratory endurance refers to the ability of the heart, lungs and circulatory system to deliver oxygen to working muscles for sustained periods of time.
The ego is  your consciousness of your own identity, or the conscious mind. Basically, your ego is related to your confidence level; if you have a big ego, your confidence is high, and visa versa. Additionally, having an ego can mean having an inflated feeling of pride or self-worth. The ego is your consciousness of your own identity, or the conscious mind. Basically, your ego is related to your confidence level; if you have a big ego, your confidence is high, and visa versa. Additionally, having an ego can mean having an inflated feeling of pride or self-worth.
in psychoanalytic theory, one of the three major parts of the personality, the others being the id and the superego. The word ego is Latin for âI,â that is, self or individual as distinguished from other persons. The ego is represented by certain mental mechanisms, such as perception and memory, and specific defense mechanisms that are used to adjust to the demands of primitive instinctual drives (the id) and the demands of the external world (superego).