A Little More Than One in ______ Americans Suffer from Persistent

question 308

Multiple Choice

A little more than one in ______ Americans suffer from persistent or chronic insomnia.

• A) four
• B) six
• C) eight
• D) ten

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Definitions:

Motor Neurons

Neurons that carry outgoing information from the brain and spinal cord to the muscles and glands.

Endorphins

Natural, pain-relieving chemicals produced by the body that also promote feelings of pleasure and well-being.

Sympathetic Nervous System

Part of the autonomic nervous system that prepares the body for 'fight or flight' responses during perceived threats.

Parasympathetic Nervous System

Part of the autonomic nervous system that conserves energy by slowing the heart rate, increasing intestinal and gland activity, and relaxing sphincter muscles in the gastrointestinal tract.