Seasonal affective disorder (SAD) is a type of depression triggered by seasonal changes, typically occurring with the onset of autumn. It affects around 1% to 2% of the population, particularly women and young individuals, while a milder form of winter blues can impact approximately 10% to 20% of people.
Although winter is commonly associated with SAD, certain individuals face greater challenges during warmer weather.
There is a less common variant of SAD known as "summer depression," which emerges in late spring or early summer and persists until fall.
Experts explore various specific theories to elucidate the causes of summer depression. A prominent theory posits that excessive exposure to sunlight during the summer months disrupts the body's internal clock or circadian rhythm, leading to reduced levels of melatonin. Consequently, individuals with summer SAD may experience insomnia or other sleep disturbances.
Some studies have indicated a potential link between summer SAD and higher temperatures and humidity.
Individuals grappling with summer SAD may exhibit the following symptoms:
Understanding Freezing Injury in Plants
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Freezing injury and chilling injury are both types of low-temperature
damage that affect plants and agricultural produce, but freezing injury
specifically ...