kihira
1
From: Seasonal affective disorder - PubMed Health
Seasonal affective disorder (SAD) is episodes of depression that occur at a certain time of the year, usually during winter.
The disorder may begin during the teen years or in early adulthood. Like other forms of depression, it occurs more often in women than in men.
People who live in places with long winter nights are at greater risk for SAD. A less common form of the disorder involves depression during the summer months.
Other factors that may make SAD more likely include:
*Amount of light
*Body temperature
*Genes
*Hormones
Symptoms usually build up slowly in the late autumn and winter months. Symptoms are usually the same as with depression:
*Increased appetite with weight gain (weight loss is more common with other forms of depression)
*Increased sleep and daytime sleepiness (too little sleep is more common with other forms of depression)
*Less energy and ability to concentrate in the afternoon
*Loss of interest in work or other activities
*Slow, sluggish, lethargic movement
*Social withdrawal
*Unhappiness and irritability
Seasonal affective disorder (SAD) is episodes of depression that occur at a certain time of the year, usually during winter.
The disorder may begin during the teen years or in early adulthood. Like other forms of depression, it occurs more often in women than in men.
People who live in places with long winter nights are at greater risk for SAD. A less common form of the disorder involves depression during the summer months.
Other factors that may make SAD more likely include:
*Amount of light
*Body temperature
*Genes
*Hormones
Symptoms usually build up slowly in the late autumn and winter months. Symptoms are usually the same as with depression:
*Increased appetite with weight gain (weight loss is more common with other forms of depression)
*Increased sleep and daytime sleepiness (too little sleep is more common with other forms of depression)
*Less energy and ability to concentrate in the afternoon
*Loss of interest in work or other activities
*Slow, sluggish, lethargic movement
*Social withdrawal
*Unhappiness and irritability