And don't wake up earlier than usual to study; this could interfere with the rapid-eye-movementsleep that aids memory, he says.
不要比平常更早起床学习,这么做会妨碍有助记忆的快速眼动睡眠。
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The brain is as active during REM (rapideyemovement) sleep when most vivid dreams occur as it is when fully awake, says Dr. Eric Nofzinger at the University of Pittsburgh.