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芬兰一项最新研究成果表明,每夜保持7~8小时睡眠的人,其记忆力和行为能力表现最佳。芬兰国家健康与福利研究所有关睡眠障碍和失眠的研究显示,
A new Finnish study shows that people who sleep for 7 to 8 hours a night perform best in memory and behavioral performance. Finnish Institute of Health and Welfare studies on sleep disorders and insomnia show that,