Because in Africa there isn't a great amount of people who have access to the internet
Im 99% sure that this is an opinion because it isn't for a fact true.
The answer to this question is:
<span>The
brain structure that is most likely causing this is the
“Reticular Formation”.</span>
<span>
The
reticular formation plays a vital role in states of consciousness like awareness
and sleep. It has connections to the thalamus and cerebral cortex
that allow it to gain some control over which sensory signals arrive at the
cerebrum and come to our conscious attention. </span>
