The deepest cause of this problem stems from a sense of insecurity. Children and girls belong to the vulnerable groups in society, especially in such a characteristic environment at night. Even ordinary adult men are not so open-minded during the day. This night certainly gave more psychological hints and imagination to the vulnerable people.

People's first reaction in stressful situations such as panic is to be alert. Children and girls in the dark are alert at first, and get excited when they enter the second state. Under stress, their adrenal glands will be secreted in large quantities, and the state of realization is excitement, because they need to fight the panic caused by shadows in the dark. Entering the third state is fatigue. People can't always be highly nervous, there will always be fatigue. This is a period of exhaustion.

When they tell you about the shadow, the excitement they show clearly shows that they are in the second state of panic and stress.