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How is Einstein's famous equation, E = mc2, important in understanding the Sun?
Medulla
The inner region of an organ or tissue, especially the medulla oblongata which is a part of the brainstem controlling vital bodily functions.
Forgotten Period
A term that is not clearly defined in the context of psychological or medical terminology; could refer to amnesia or a phase of life not remembered, but without a specific definition.
Stress Response
The body's reaction to a perceived threat or challenge, involving physiological and psychological changes.
Sympathetic Nervous System
The nerve fibers of the autonomic nervous system that quicken the heartbeat and produce other changes experienced as arousal and fear. One of the two major routes by which the brain and body produce arousal and fear.
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