The "winter depressions" that stem from reduced exposure to daylight.
A form of depression occurring at certain seasons of the year, especially when the individual has less exposure to sunlight.
( Related information) Seasonal affective disorder (SAD) is a form of depression that appears related to fluctuations in the exposure to natural light. It usually strikes during autumn and often continues through the winter when natural light is reduced. Researchers have found that people who have SAD can be helped with the symptoms of their illness if they spend blocks of time bathed in light from a special full-spectrum light source, called a "light box."
Periods of depression that are linked to the times of year with minimal sunlight. go to glossary index
recurrent fall or winter depression.
A type of depression associated with loss of daylight, usually experienced in the winter in the northern hemisphere. SAD affects 3 - 5 % of adults in Canada, with 4 times more women than men affected; it is characterized by a chronic depression, fatigue, and carbohydrate cravings, with regular onset in the fall and offset in the spring. See light therapy.
A variant of bipolar disorder characterized by cyclic manic, depressive, or mixed mood states that are somehow triggered by external cues related to changing seasons, including principally, increased or decreased day length. Individuals with SAD tend to become depressed during the autumn months and manic during springtime.
a type of depression that results from reduced exposure to sunlight during the fall and winter.
a disorder characterized by depression, sleeping too much, overeating, diminished sex drive, working less productively, and other depression-related symptoms that occurs in the mid-to-late fall due to less light exposure. Symptoms usually diminish with the onset of spring.
SAD is a form of depression linked to the seasons. Sufferers become depressed during autumn and winter.
a form of depression caused by inadequate bright light reaching the biological clock in the suprachiasmatic nucleus. Consequently, treatment often involves the use of light therapy.
Type of depression that occurs during the fall and winter months.
is a form of depressive illness occurring only during the short daylight, winter months. It is associated with overeating and sleepiness. SAD is responsive to antidepressants and phototherapy (exposure to certain light spectra). The disorder is little researched and scientifically controversial. web.nami.org/helpline/sad.htm
Depression that occurs each year at the same time, usually starting in fall or winter and ending in spring or early summer.
A form of depression in which the decrease in natural light outside during winter months triggers symptoms of depression.
a mood disorder characterized by depression related to a certain season of the year - especially winter.
Recommendation Sunlight Exposure"...The common side effects of light therapy reported by patients in clinical trials include eye strain or visual disturbances (19%-27%), headache (13%-21%), agitation or feeling "wired" (6%-13%), nausea (7%), sweating (7%) and sedation (6%-7%)..."
A mood disorder that shows reliable fluctuations with the time of year. One example is a depression that ensues in the fall when the days become shorter and ends in the spring when the days lengthen.
this depressive illness has to do with a person's reaction to the amount of light a person receives. Symptoms of depression such as low energy, fatigue, or overeating may appear when the days begin to get shorter and there's less sunlight. People who have SAD may produce an excess of the hormone melatonin, which is related to the body's sleep cycle and biological clock.
a depression that affects people at certain seasons of the year, particularly in winter.
A form of depression (biochemical imbalance) coinciding with the decrease in daylight hours. It is marked by a drop in serotonin, the cause of which is a matter of some dispute. Seasonal Affective Disorder, or SAD, is cyclical, usually beginning in September or October, and peaking in January and February. The main factor is the loss of exposure to adequate light (going to work in the dark and returning home in the dark). It is particularly common in Canada because of the combination of shortened days with cold temperatures, causing Canadians to avoid spending time in the winter sun. Indoor lighting is not bright enough to trigger the production of sufficient quantities of the necessary brain chemicals (about one-tenth the requisite intensity). (more info - Seasonal Affective Disorder (SAD)) find all NHC pages containing: Seasonal Affective Disorder (SAD)
Recommendation Sunlight Exposure"...The antidepressant effects of light therapy are thought to be mediated through the eyes, not through skin exposure..."
Sadness and depression thatâ€(tm)s brought on by a lack of exposure to sunlight. SAD usually appears in the fall or winter and subsides in the spring (see Depression).
A mood disorder occurring in the winter months characterized by diminished energy, hypersomnia, overeating and depressed mood. Exposure to bright light in the morning hours may be effective in alleviating or decreasing symptoms.
A seasonal disruption of mood that occurs during the winter months and ceases with the advent of spring; Symptoms usually begin in September when days begin to shorten, and last through the winter and into March when the days begin to lengthen again; Light therapy plays a big part in its origin and treatment
Seasonal affective disorder, or SAD, also known as winter depression is an affective, or mood, disorder. Most SAD sufferers experience normal mental health throughout most of the year, but experience depressive symptoms in the winter or summer. SAD is rare, if existent at all, in the tropics, but is measurably present at latitudes north of 30°N, or south of 30°S.