Main causes of chronic insomnia:

By a staff reporter-Insomnia is a common sleep disorder that disrupts sleep, prevents you from getting enough sleep, or waking up too early to be able to fall asleep again. Chronic insomnia is usually the result of stress, life events, or habits that interfere with sleep. Common causes of chronic insomnia include: Worrying about work, school, health, finances, or family keeps your mind active at night, making it difficult to sleep. Reasons include late or early
shifts or frequent shifts. Bad sleep habits include irregular bedtime, naps, stimulating activities before bed, uncomfortable sleeping conditions, and
using the bed to work, eat, or watch TV.