Cerebrospinal fluid (CSF), clear, colourless liquid that fills and surrounds the brain and the spinal cord and provides a mechanical barrier against shock. Formed primarily in the ventricles of the brain, the cerebrospinal fluid supports the brain and provides lubrication between surrounding bones and the brain and spinal cord. When an individual suffers a head injury, the fluid acts as a cushion, dulling the force by distributing its impact. The fluid helps to maintain pressure within the cranium at a constant level.
https://www.britannica.com/science/cerebrospinal-fluid
Answer:
Ensure a nutritious diet and adequate calcium intake.
Avoid under-nutrition, particularly the effects of severe weight-loss diets and eating disorders.
Maintain an adequate supply of vitamin D.
Participate in regular weight-bearing activity.
Avoid smoking and second-hand smoking.
Avoid heavy drinking.
Explanation:
Self-assessment, since this is when you will find your personal value through different occupations, discover more about personality , interests, values, etc.
The circulatory system will carry the nutrients through the bloodstream.