Research the causes of these symptoms that are similar to, or related to, the symptom Enlarged liver: 1  Enlarged spleen (1232 causes) 2  Hepatomegaly (1314 causes)  Hepatitis (42 causes)
Night terrors strike children, usually between the ages of 3 years and 8 years. They rarely occur in older children, adolescents and adults. In both adults and children, night terrors may be caused by unsettled psychological conflicts, upsetting events or tiredness.
[edit on Wikidata] Night terror, also known as sleep terror, is a sleep disorder, causing feelings of terror or dread, and typically occurs during the first hours of stage 3-4 non-rapid eye movement (NREM) sleep. Night terrors tend to happen during periods of arousal from delta sleep, also known as slow-wave sleep. During the first half of a sleep cycle, delta sleep occurs most often, which indicates that people with more delta sleep activity are more prone to night terrors. However, they can also occur during daytime naps.