If you pull too wide you could start sinking and it can mess ur swimming up
Answer:
CSF ( Cerebrospinal fluid) is the colorless, clear fluid present in the spinal cord and brain. The ependymal cells present in the choroid plexus is responsible for the production of CSF.
Around 500 ml of the CSF is produced every day in the central nervous system. The main function of the CSF is the covering of the brain and cushions the central nervous system. This fluid allows the water medium for the diffusion of the chemicals and nutrients
Answer:
Heimlich Maneuver to help them breath
The study of British civil servants that compared mortality rates across four employment grades over a ten-year period is the Whitehall study.
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What is the Whitehall study? </h3>
It was the study to determine the social factors that affected the health of British civil servants. It included the study of prevalence or occurrence of diseases like cardiovascular diseases. It also included studies of the mortality rate.
This was done in two parts
- Whitehall study I - It was conducted from 1967 to 1977. It examined 17500 civil servants (only male)
- Whitehall Study II - It was conducted from 1985 to 1988. It examined 10,308 civil servants. One-third of them were women.
Therefore, the study of British civil servants that compared mortality rates across four employment grades over a ten-year period is the Whitehall study.
Read more about the Whitehall study, here
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