The symptoms include body shaking (tremulousness), insomnia, agitation, confusion, hearing voices or seeing images that are not really there (hallucinations), seizures, rapid heart beat, profuse sweating, high blood pressure, and fever.
Ancient Sumerian and Egyptian medical texts dated as early as 4000 B.C. mention the opium poppy (Papaver somniferum) as the source of a milky fluid (opium latex) that could be given to relieve coughs and insomnia as well as ease pain.
Health problems associated with severe insomnia are more than significant, with mortality rates looming in studies conducted by Penn State College of Medicine and the California Pacific Medical Center in San Francisco, respectively.
The National Center for Complementary and Alternative Medicine, a division of the National Institutes of Health, is conducting ongoing research supporting the benefits of yoga for those who suffer from insomnia and acute lower-back pain.