If you thought you knew what sad means before reading this article, then you are probably wrong:)
SAD; a medical case or a mood description:
Years ago, medical researchers identified a psychological disorder that they appropriately named Seasonal Affective Disorder or SAD. People who suffer from SAD become very depressed during the winter months. Doctors now understand the causes of this condition, which affects millions of people, particularly in areas of the far north where winter nights are long and the hours of daylight are few.
SAD results from a decrease in the amount of sunlight sufferers receive. Doctors know that decreased sunlight increases the production of melatonin, a sleep- related hormone that is produced at increased levels in the dark. Therefore when the days are shorter and darker, the production of this hormone increases. Shorter, darker days also decrease the production of seratonin, a chemical that helps transmit nerve impulses. Lack of seratonin is known to be a cause of depression ("Seasonal" HH, par. 1). Depression may result from the resulting imbalance of these two substances of the body. Also, doctors believe that a decrease in the amount of sunlight the body receives may cause a disturbance in the body's natural clock ("Seasonal" NMHA, par. 2). Doctors believe that the combination of chemical imbalance and biological clock disturbance results in symptoms such as lethargy, oversleeping, weight gain, anxiety, and irritability- - all signs of depression.
Since the absence of light seems to be the cause of this disorder, a daily dose of light appears to be the cure. Doctors advise patients to sit in front of a special light box that simulates natural light for a few hours every day. An hour's walk outside in winter sunlight may also help(par. 4).
In conclusion, the depressive effect of low sunlight levels may help explain the high suicide rate in the Scandinavian countries; more important, it may suggest a remedy: When the days grow short, turn on the lights.
The normal case of stress that could be close to sad:
Other than SAD, there are stress cases that are also depressing people. The busy schedules that most adults face every day have created a growing health problem in the modern world. Stress affects almost everyone, from the highly pressured executive to the busy homemaker or student. It can cause a variety of physical disorders ranging from headaches to stomach ulcers and even alcoholism. Stress, like the common cols, is a problem that cannot be cured; however, it can be controlled. A person can learn to control stress in four ways:
1- set realistic goals.
2- Take up a hobby.
3- Exercise regularly.
4- Maintain close relationships with family and friends.
5- Travel to a new place even for 1 day or less every once in a while.
To know more about traveling, wait for my next article that includes the benefits of traveling and its defects and how to come over it.