Insomnia

• Why can't I sleep at night?
• Why do I wake up in the middle of the night?
• How do I stay asleep?
• What is insomnia and why is it happening to me?
• How do I know if I have insomnia? What are the symptoms?
• What is causing my insomnia?
• What are the different types of insomnia?
• Can shift work affect my sleep and give me insomnia?
• Is there any cure for my insomnia?