Examlex
Why is it easier to see fine print in brighter light than in dimmer light?
Sleep
A naturally recurring state of mind and body, characterized by altered consciousness, relatively inhibited sensory activity, reduced muscle activity, and inhibition of nearly all voluntary muscles during rapid eye movement (REM) sleep phases.
Aging
The process of becoming older, which includes biological, emotional, intellectual, and social changes.
Hypothalamus
A region of the brain that regulates basic biological needs and motivational systems such as hunger, thirst, and body temperature.
Sleep
A natural condition that impacts both mind and body, marked by a change in consciousness, reduced sensory experiences, and a suppression of most voluntary muscle movements.
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