we sleep for 36 percent of our lives but
do we know why well it's a little more
complicated than you think we know that
during sleep muscle growth tissue repair
and protein synthesis occurs so sleep
might restore what the body loses while
we're awake recent studies indicate that
the brain uses sleep in order to flush
out waste toxins in the brain and
problems with this cleaning process may
play a role in many brain disorders such
as Alzheimer's disease another theory
suggests that since new synapses are
constantly being generated throughout
your day sleep you might be when these
synapses are cleaned out while you sleep
your brain might be replaying and
processing the events of your day which
could reinforce learning and memory so
basically what we're saying is we have
no idea why we sleep but we do it for
over a third of our lives we would die
without it