제 목    qcVUzAavRbSHs 이 름    Emmitt 날 짜    2018/06/28 조 회    1 Stolen credit card beneflex insurance services inc Nedergaard believes the clean-up process is more active during sleep because it takes too much energy to pump fluid around the brain when awake. "You can think of it like having a house party. You can either entertain the guests or clean up the house, but you can't really do both at the same time," she said in a statement.