Insomnia is a sleep disorder that regularly affects millions of people worldwide. In short, individuals with insomnia find it difficult to fall asleep or stay asleep. The effects can be devastating. Insomnia commonly leads to daytime sleepiness, lethargy, and a general feeling of being unwell, both mentally and physically. Mood swings, irritability, and anxiety are common associated symptoms. Insomnia has also been associated with a higher risk of developing chronic diseases. According to the National Sleep Foundation, 30-40 per cent of American adults report that they have had symptoms of insomnia within the last 12 months, and 10-15 per cent of adults claim to have chronic insomnia.
- Disruptions in circadian rhythm
- Psychological issues.
- Medical conditions