Editing Seasonal affective disorder (section)

===Other countries===
In the United States, a diagnosis of seasonal affective disorder was first proposed by [[Norman E. Rosenthal]], M.D. in 1984. Rosenthal wondered why he became sluggish during the winter after moving from sunny [[South Africa]] to (cloudy in winter) [[New York (state)|New York]]. He started experimenting with increasing exposure to artificial light, and found this made a difference. In [[Alaska]] it has been established that there is a SAD rate of 8.9%, and an even greater rate of 24.9%<ref>[http://www.britebox.co.uk/sad-study.php?page=latitude SAD Treatment | SAD Lamp | SAD Light | SAD Cure | Seasonal Affected Disorder Britebox Energise Case Study] {{webarchive|url=https://web.archive.org/web/20110810084450/http://www.britebox.co.uk/sad-study.php?page=latitude |date=August 10, 2011 }}. Britebox.co.uk. Retrieved on March 24, 2013.</ref> for subsyndromal SAD.

Around 20% of [[Irish people]] are affected by SAD, according to a survey conducted in 2007. The survey also shows women are more likely to be affected by SAD than men.<ref>[https://www.irishexaminer.com/news/arid-30335888.html One in five suffers from SAD]. Irish Examiner (November 10, 2007). Retrieved on March 24, 2013.</ref>{{Better source needed|date=January 2021}} An estimated 3% of the population in the [[Netherlands]] experience winter SAD.<ref name="pmid10386184">{{cite journal | vauthors = Mersch PP, Middendorp HM, Bouhuys AL, Beersma DG, van den Hoofdakker RH | title = The prevalence of seasonal affective disorder in The Netherlands: a prospective and retrospective study of seasonal mood variation in the general population | journal = Biol. Psychiatry | volume = 45 | issue = 8 | pages = 1013–22 | date = April 1999 | pmid = 10386184 | doi = 10.1016/s0006-3223(98)00220-0 | s2cid = 21467329 | url = https://pure.rug.nl/ws/files/10517302/1999BiolPsychiatMersch.pdf | hdl = 11370/31c5324d-4415-4980-9fb0-cd8f3b700b77 | hdl-access = free }}</ref>