Examlex
Identify the radioactive element that is so radioactive that it glows visibly and emits heat.
REM Sleep
Rapid Eye Movement (REM) Sleep is a stage of sleep characterized by quick, random movements of the eyes, dreaming, and increased brain activity.
Sleep Terrors
Intense episodes of fear that occur during deep sleep, often characterized by screaming, kicking, confusion, and no memory of the event upon waking.
Nightmares
Frightening dreams that occur during REM sleep, often in the morning hours.
Sleep Terrors
Episodes of screaming, intense fear, and flailing while still asleep, often occurring in children.
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