a applied science
I think it's hypno, Greek for sleep. Hypnosis is mainly used for sleeping disorders such as insomnia.
The primary focus of physiological psychology is the development of theories that describe brain-behavior relationships. Typically, this means studying the nervous system, emotional responses, and sleep patterns.
In general, psychologists study sleep and dreams. But there are also a number of psychiatrists and medical doctors that study sleep and dreams because of the frequency of sleep disorders and the need for medical intervention.
Hypersomnia is a condition which causes excessive sleepiness, not generally due to insufficient sleep at night. Generally the person with hypersomnia will feel the need to nap several times during the day, and may feel sleepy throughout the day. This condition may persist for more than two weeks and may be due to numerous causes. Difference in cause means that treatment varies for individuals with hypersomnia.
Serotonin (5-hydroxytryptamine, or 5-HT) is the neurotransmitter associated with reducing anxiety, reducing aggression, reducing appetite, increasing somnolence (sedation and quality of sleep), and reducing depression. A deficiency of this neurotransmitter, or receptor mutations leading to decreased binding affinity of one's own neurotransmitter levels can lead to any of inverse symptoms listed above (depression, anxiety, aggression, increased hunger or overeating, sleep disorders, etc.).
appiled science
There are about 70 different sleep disorders.
Minor sleep disorders can be treated with over the counter sleep aids, but more serious disorders are treatable with melatonin.
It depends on which aspect of sleep you are talking about, but in general, not much time is spent studying sleep while in medical school (probably on the order of a few days). But depending on which type of residency the doctor trains in, there may be a lot of time devoted to it. For instance, those studying to become neurologists will spend much more time learning about sleep than those becoming surgeons. Some doctors even specialize in sleep medicine or sleep disorders, and they can spend years in post graduate training to learn about sleep.
Charles Pollak has written: 'The encyclopedia of sleep and sleep disorders' -- subject(s): Encyclopedias, Sleep disorders, Sleep
A doctor who specializes in sleep and sleep disorders
Ronald Attanasio has written: 'Dental management of sleep disorders' -- subject(s): Sleep disorders, Sleep apnea syndromes, Sleep Apnea Syndromes, Bruxism, Therapy, Diagnosis, Dentistry, Sleep Bruxism, Methods 'Dental management of sleep disorders'
There are a variety of sleep disorders that cause fatigue, including insomnia, hypersomnia, sleep apnea , and restless legs syndrome.
Primary sleep disorders are distinguished as those that are not caused by other mental disorders, prescription medications, substance abuse, or medical conditions.
P. Lavie has written: 'Sleep disorders' -- subject(s): Diagnosis, Physiological aspects, Physiological aspects of Sleep, Sleep, Sleep disorders, Treatment
Most sleep disorders seem to be exaserbated by exercising diet and inconsistent sleep schedule. The use of drugs are thought to make some disorders worse. Being overweight is a possible contributor to sleep disorder.
Polysomnography and Somnology are both used to describe the study of sleep and sleep disorders. A somnologist would be the best term for a scientist who studied sleep disorder, but he might not be a licensed doctor.