Teenage insomnia causes: 1, may be due to mental tension, stress, mostly due to study fatigue or study pressure leads to teenage insomnia. For this situation, it is recommended that teenagers should carry out appropriate self-relaxation, if necessary, you can listen to soothing music, or under the guidance of a psychiatrist for self-hypnosis, etc. 2, teenage insomnia may also be due to irregularities in life, in particular, excessive late-night sleep can lead to work and rest time disorders, resulting in teenage insomnia, which suggests that teenagers should develop a regular work and rest habits. 3, teenage insomnia can also be seen in the Anxiety disorders, depression patients, due to mental disorders lead to patients have difficulty sleeping. For the above situation is recommended in the psychiatrist under the guidance of the oral improvement of anxiety, depression, clinical choice of drugs such as escitalopram oxalate, you can also take Chinese medicine, acupuncture, massage to alleviate.