SAD

dar100

http://m.cpx.sagepub.com/content/early/2016/01/18/2167702615615867.abstract

So, if we don't attribute sessional affective disorder to the weather, what is it? General low mood? Situational low mood etc depression in general.

Can't access the whole article, maybe lack of sun acts as a mediator, as opposed to causality ?

Any thoughts

JuliusCaesar

What the article is saying (I only read the abstract) is depression is depression - there is no Seasonal Affective Disorder, just depression.

Abstract

Seasonal affective disorder (SAD) is based on the theory that some depressions occur seasonally in response to reduced sunlight. SAD has attracted cultural and research attention for more than 30 years and influenced the DSM through inclusion of the seasonal variation modifier for the major depression diagnosis. This study was designed to determine if a seasonally related pattern of occurrence of major depression could be demonstrated in a population-based study. A cross-sectional U.S. survey of adults completed the Patient Health Questionnaire–8 Depression Scale. Regression models were used to determine if depression was related to measures of sunlight exposure. Depression was unrelated to latitude, season, or sunlight. Results do not support the validity of a seasonal modifier in major depression. The idea of seasonal depression may be strongly rooted in folk psychology, but it is not supported by objective data. Consideration should be given to discontinuing seasonal variation as a diagnostic modifier of major depression

Avatar MIA

Does depression have triggers?

If yes, why would long nights not be one for some sufferers?

JuliusCaesar

Well, there's always a trigger - or triggers. Long hours of darkness might be a factor for some people but there isn't (according to the study) enough evidence to say there's a reliable enough correlation for there to be a separate disorder related to lack-of-sunlight causing a depressive disorder.