Human Biology

(Sean Pound) #1

1.52. Keeping the Nervous System Healthy http://www.ck12.org


FIGURE 1.102
These foods are sources of nutrients needed for a healthy nervous system.

Daily physical activity is also important for nervous system health. Regular exercise makes your heart more efficient
at pumping blood to your brain. As a result, your brain gets more oxygen, which it needs to function normally. The
saying “use it or lose it” applies to your brain as well as your body. This means that mental activity, not just physical
activity, is important for nervous system health. Doing crossword puzzles, reading, and playing a musical instrument
are just a few ways you can keep your brain active.


You can also choose to practice safe behaviors to protect your nervous system from injury. To keep your nervous
system safe, choose to:



  • Wear safety goggles or sunglasses to protect your eyes from injury.

  • Wear hearing protectors, such as ear plugs to protect your ears from loud sounds.

  • Wear a safety helmet for activities like bike riding and skating (Figure1.103).

  • Wear a safety belt every time you ride in a motor vehicle.

  • Avoid unnecessary risks, such as performing dangerous stunts on your bike.

  • Never dive into water that is not approved for diving. If the water is too shallow, you could seriously injure
    your brain or spinal cord. A few minutes of fun could turn into a lifetime in a wheelchair.

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