Is defined as an individuals’ inability to fall and/or stay asleep. Almost everyone will suffer from lost or disturbed sleep on occasions, typically due to stress or anxiety, an upcoming or pending event or drinking too much caffeine or alcohol. Whereas Insomnia is most often a sign or symptom that can accompany several sleep, medical, and psychiatric disorders, characterized by persistent difficulty falling asleep and/or staying asleep or sleep of poor quality.
There are 3 types of Insomnia:
- Transient Insomnia – typically lasts for less than 1 week and maybe caused by other conditions; changes to sleeping environment or timing of sleep, depression or stress.
- Acute Insomnia – is the inability to sleep sufficiently or consistently for a period of less than 1 month. This may be that the quality of sleep is not good enough to feel fully refreshed or that the initiation or maintenance stage of sleep is inadequate.
- Chronic Fatigue – is where the patients’ inability to sleep sufficiently or consistently for a period of more than 1 month. Its’ effects can be particularly damaging to the patients’ health and they may experience severe muscle fatigue and irritability, hallucinations and mental exhaustion.
The causes of insomnia vary widely from those mentioned above to recreational drugs, medication, chronic and acute pain, medical conditions, hormonal changes, mental conditions, exercise and external factors including light and noise to name a few.