Sleep disorders and insomnia causes are problem among young and old throughout the world. But some insomnia causes can have more serious consequences than other. For instance, Dr.J.V a Denver anesthesiologist was tried for falling asleep during minor surgery in which an 8 year old boy died. John Rogers in California is an example of what the American Medical Association calls "American's hidden nightmare". He is one of 1,500 people a year who end up in fatal during accidents due to insomnia.

Insomnia causes a scientific approach to sleep only started in the 1950s and is considered a truly new science. One of the world's pioneer sleep researchers, William C. Dement, M.D,Ph.D, Director of the Sleep Disorders Clinic and Laboratory at Stanford University School of Medicine, stress in the main key of cause of insomnia. Insomnia cause lack of sleep can lead to poor performance at work. Sleep deprived individual have more difficulty remembering things, thinking logically, understanding spoken instructions and making decision. Insomnia causes all of which are essential contributions to job performance.

While researchers know a lot about how we sleep, they still can't agree on why we sleep. Some claim it is mainly to achieve energy, others to restore the body. More research is needed before we know conclusively why human beings need to spend about a third lifetime asleep. Since insomnia causes a lot of bad health, many researchers are alarmed because throughout the world, from adolescence to older adulthood, people are getting less sleep than they did in past decade.

This was confirmed in an article in the journal Sleep in which Donald Bliwise, Ph.D, the director of the Sleep Disorder center at Emory University Medical School in Atlanta, found that today's adults usually don't get enough sleep to feel good and function well the next day. Bliwise evaluated past and present sleep habits by questioning 1,200 healthy adults ranging from 18 to past 70 and comparing this questionnaire with data published from the 1930s onward.

Insomniacs spend hours every night in worried anticipation that they will not fall asleep or get back to sleep if awakened. Insomnia cause feel less well physically and less able to enjoy contact with family and friends. Insomnia cause memory lapses and difficulties in concentrating during day time sleepiness.

The National Institute of Mental Health found people who said they had insomnia had a higher risk of later developing a major depressive disorder than those who slept adequately.

More than half the insomniacs studies worldwide by WHO had problems with anxiety, depression or alcohol. Four in ten insomniacs have tried alcohol or over the counter medications to help them sleep better. Insomnia cause accidents are twice as widespread in people who claim insomnia than those who feel they sleep well.

However, the sense of not getting enough sleep is sometimes a matter sleeper, when tested throughout the night in a sleep laboratory, turned out to have average sleep habits.

Unfortunately, many things can disrupt a good night's sleep. Some things such as the foods we eat are relatively easy to control. Other things like chronic medical conditions or circadian rhythm disturbances can cause considerable havoc before we're able to bring then under control.

Insomnia cause mood swings, irritability or aggression are taken as classic signs of insufficient sleep. However, these may be symptoms of hyperactivity for example, which no amount of extra sleep will cure.