How much is too much movement in rapid eye movement?

Question:

How much is too much movement in rapid eye movement?

Measuring Eye Movement:

As the eye is a sphere, movement is measured by the rotation of the eye in its socket as evidenced by the movement of a single point of the eye along an arc and is measured in degrees. This is most often associated with stages of sleep. Because the eye can change direction, each directional movement during that second is measured and added together to define the total degrees of movement even if no movement exceeds one degree on its own.

Answer and Explanation:

Rapid eye movement during sleep regularly reaches speeds of 1,000 degrees per second. This is considered the normal upper range of rapid eye movement...

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