Insomnia that usually lasts less than a week and does not recur. If it recurs from time to time, the insomnia is considered intermittent. If the insomnia affects most nights and lasts a month or more, it is considered chronic insomnia.
Transient insomnia may not require treatment. For example, if it is due to jet lag, the biological clock will return to normal on its own. Short-acting sleeping pills may improve sleep and next-day alertness but, as with all drugs, there are potential side effects. The use of over-the-counter sleep medicines is not usually recommended for insomnia.
To thicken. Inspissated bile is thickened bile.
- Institute of Medicine
A nonprofit organization established in 1970 as a component of the US National Academy of Sciences that works outside the framework of government to provide evidence-based research and recommendations for public health and science policy. Abbreviated IOM. The IOM is also an honorific membership organization.
- Institute on Deafness and Communication Disorders
One of the US National Institutes of Health. The mission of the National Institute on Deafness and Other Communication Disorders is to “conduct and support biomedical research and research training on normal mechanisms as well as diseases and disorders of hearing, balance, smell, taste, voice, speech, and language that affect 46 million Americans.” The National […]
- Institute, National Eye (NEI)
One of the US National Institutes of Health, NEI’s mission is to “conduct and support research, training, health information dissemination, and other programs with respect to blinding eye diseases, visual disorders, mechanisms of visual function, preservation of sight, and the special health problems and requirements of the blind.” The National Eye Institute was established in […]
- Institutional Review Board
IRB. A group of scientists, doctors, clergy, and consumers at each health care facility that participates in a clinical trial. IRBs are designed to protect study participants. They review and must approve the action plan for every clinical trial. They check to see that the trial is well designed, does not involve undue risks, and […]