Each person must go through one or more "terrible night" in life. It is similar to nightmares, disturbing dreams involving fear, anxiety or terror. Nighttime fears can occur in anyone, but mostly in young children. Nowadays, children have busy schedules in school learning. Playing time is limited outside but instead was entertainment from television and online games. These things inadvertently affect children's sleep. According to experts, children need about 7-9 hours of sleep each night to ensure health for the next operation.
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