Answer:
The central nervous system is made up of the brain and the spinal cord. The brain communicates with the rest of the body through the spinal cord, which runs from the base of the brain all the way down the back. ... Messages travel from the brain into the spinal cord and out to the body's nerves to tell the body what to do.
Explanation:
Answer:
A
Explanation:
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Answer:
Heart disease
Cancer
Unintentional injuries
Chronic lower respiratory disease
Stroke and cerebrovascular diseases
Explanation:
I did an assignment on it
Answer:
too much screen time after dark
Explanation:
screens give off blue light. blue light signals your brain to be awake.