Not in lone splendour hung aloft the night 

And watching, with eternal lids apart, 

         Like nature's patient, sleepless Eremite, 

The moving waters at their priestlike task 

         Of pure ablution round earth's human shores, 

Or gazing on the new soft-fallen mask 

         Of snow upon the mountains and the moors— 

No—yet still stedfast, still unchangeable, 

         Pillow'd upon my fair love's ripening breast, 

To feel for ever its soft fall and swell, 

         Awake for ever in a sweet unrest, 

Still, still to hear her tender-taken breath, 

And so live ever—or else swoon to death.

-John Keats

The baby who is neglected or abused cannot regulate its own feelings. If its needs are not met it will scream louder and louder and eventually take refuge in sleep. A baby left to continually scream will experience raised levels of the stress hormone cortisol, which can damage the immune system

The "social" part of the brain only starts to develop at around six months. Where a baby does not receive any attention, this part of the brain does not grow and may never grow."

Antisocial personality disorder is a mental health condition in which a person has a long-term pattern of manipulating, exploiting, or violating the rights of others. This behavior is often criminal.

Causes

Cause of antisocial personality disorder is unknown. Genetic factors and environmental factors, such as child abuse, are believed to contribute to the development of this condition. People with an antisocial or alcoholic parent are at increased risk. Far more men than women are affected. The condition is common among people who are in prison.

Fire-setting and cruelty to animals during childhood are linked to the development of antisocial personality.

Some doctors believe that psychopathic personality (psychopathy) is the same disorder. Others believe that psychopathic personality is a similar but more severe disorder.