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Scientists
are
today
intensifying
their
investigations
into
the
mystery
of
human
sleeping
mechanism,
a
complicated
physiological phenomenon. Why
people have
to
sleep?
What
changes
are
going
on
inside
the
human body whensleeping?Why
we
will
wake
up
naturally
from
sleep?
All
these questions include
a
series
of
complicated and abstruse biochemical reaction inside the
body.
The
organs concerned
are
broad,
including
different
areas
of
the
brain,
the
endocrine sytem and even
the
immune system.
A
re-
search
scientist from the
Medical
School of
Harvard
University
re-
cently conducted experiments on
a
chemical
substance extraced
from brain, known
as
muramy peptide
(MP), very
strong
sleep in-
ducing agent.
lt
may eventually lead scientists
to
prove
the
hypoth-
esis
that
sleep
may well
be
a
preventive
therapy
in
a
biological
context.
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