<span>It is during the stage where rapid eye movement begins in sleep
where dreams begin. During this period, as brain activity increases so does their
respiration rate. Even though the brain
and other systems are lively, the muscles continue to be calm. This happens for around fifteen to twenty
minutes.</span>
Ergonomics<span> (or human factors) is the </span>scientific<span> discipline concerned with the understanding of interactions among humans and also other elements of a system, & the profession that applies theory, principles, data and methods to design in order to optimize human well-being and overall system performance.
Hope This Helps</span>