Paragraph 2
The
studied the sleep
of over 500 people. There were 98 people from a
that had no electricity or other
. Scientists compared their sleep
to 464 people living in a U.S. city. The scientists said people in the
and in the big city got
sleep on nights before the
moon. The light in cities does not seem to affect
patterns. The scientists said
sleep is linked to the changing of the Moon.