Answer:
A traumatic brain injury interferes with the way the brain normally works. When nerve cells in the brain are damaged, they can no longer send information to each other in the normal way. This causes changes in the person's behavior and abilities. The injury may cause different problems, depending upon which parts of the brain were damaged most.
Answer:
Epidemologists.
Explanation:
Epidemologists are responisble for systematically ivestigating the distribution (frequency, patterns of who disease spread between) and determinants (causes, risk factors, pathogen) of health-related states and events in specified populations (neighborhood, school, city, state, country, global)."
