HIV or other sexually transmitted diseases.
Answer:
By optimizing environmental health, communities can reduce exposure to disease, as well as to pollutants that have a toxic effect on the body. The benefits of environmental health interventions can improve life for everyone, but may have the most pronounced effect among those who are already in vulnerable health.
Explanation:
Glial cells<span> of the (a) central nervous system include oligodendrocytes, astrocytes, ependymal </span>cells<span>, and microglial </span>cells<span>. Oligodendrocytes form the myelin sheath around axons.</span>
A dietician/nutritionalist, if that's one of your options :)