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Which of the following was not a challenge facing Emperor Charles V as he attempted to create a universal empire?
Paradoxical Sleep
Also known as REM (Rapid Eye Movement) sleep, it is characterized by vivid dreams and is considered a stage where the brain is highly active but the body's muscles are relaxed.
Brain Activity
The electrical and chemical processes occurring within the brain that enable thought, perception, and other neurological functions.
REM Sleep
A stage of sleep characterized by rapid eye movement, increased brain activity, and vivid dreams.
Nightmares
Disturbing dreams that can cause feelings of fear, terror, distress, or anxiety, often leading to awakening.
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