The World Wide sleep survey has now finished its first phase. Globalization is affecting many cultures and sleep does vary across cultures. No one know the answer yet. Neuronic is involved in trying to find out before the end of this millennium. Go to WW Sleep Survey and leave your sleep details there.
Insomnia has numerous causes and there are no universal solutions.
The Insomnia Kit deals with both conventional and non-conventional treatments. Insomnia is often but not always a symptom of other disorders. There are different types of insomnia. The current International Classification of Sleep Disorders lists several. Interestingly, the New Oxford English Dictionary notes that the word insomnia originated in the 17th Century.