Answer:
Mounting evidence indicates that in healthy older adults, <u>Mylenin breakdown</u> predict(s) decrements in reaction time and other cognitive abilities.
Explanation:
According to one view, aging is accompanied by withering of the myelin coating on neural fibers within the cerebral cortex, leading to deteriorating neural connections, especially in the prefrontal cortex and the corpus callosum. Mounting evidence indicates that in healthy older adults, extent of myelin breakdown—appearing as small, high-intensity bright spots within fMRIs—predicts decrements in reaction time and other cognitive abilities.
AIDS is the most severe phase of HIV infection, when a person’s immune system is severely weakened. When HIV weakens the immune system opportunistic infections occur in the body. The low number of helper T cells in the blood and the badly damaged immune systems leads the infected to get an increasing number of severe illnesses, called opportunistic illnesses. Opportunistic infections are infections caused by pathogens that take advantage of an opportunity not normally available.
Mitochondria maybe? I might be wrong.
They provide energy
Hope this helps have a good day
