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Home » Does Mania Follow the Sun?

Does Mania Follow the Sun?

February 1, 2019
From The Carlat Psychiatry Report
Issue Links: Learning Objectives | Editorial Information | PDF of Issue

Chris Aiken, MDChris Aiken, MD. 
Editor-in-Chief of The Carlat Psychiatry Report. Practicing psychiatrist, Winston-Salem, NC. Dr. Aiken has disclosed that he has no relevant financial or other interests in any commercial companies pertaining to this educational activity.

Table: Springtime Mania

TABLE : SPRINGTIME MANIA
Click here for the full PDF table showing sunlight peaks.


 

If dark nights can treat mania, can too much sunshine destabilize it? Yes and no. Mania is linked to rapid changes in sunlight, but not to the amount of light itself. Mania peaks in early spring when there’s a steep rise in sunlight. By the time the longest day of the year comes along in late June, there’s no longer a detectable increase in mania (Parker G et al, J Affect Disord 2018;226:72–76).

In some regions, this change in spring sunlight is particularly dramatic, and the onset of bipolar disorder tends to be earlier in patients who grew up in those areas (Bauer M et al, Acta Psychiatr Scand 2017;136:571–582). The spring effect is strongest in the Sunbelt and in the Northwest and Northern Midwest. The flux in sunlight peaks between March and April in most areas of the US, but in the Northeast, from DC to Maine, it’s between April and May. Click here for a PDF table showing sunlight peaks.

As a bipolar specialist, my phone rings off the hook when spring arrives, but the urgency has cooled a bit since learning about dark therapy from Dr. Phelps. I keep a pair of blue light–blocking glasses on my desk for demonstration, and remind patients to start wearing them—preventatively—as the days begin to lengthen in late February. As Dr. Phelps describes, the best time to don them depends on the severity of symptoms. For prevention, it’s 1 to 2 hours before bed.

General Psychiatry
KEYWORDS bipolar_disorder free_articles mania
www.thecarlatreport.com
Issue Date: February 1, 2019
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Table Of Contents
CME Post-Test - Dark and Light Therapy, TCPR, February 2019
An Opioid Combo Falls Short in Depression
Prazosin for Alcohol Use Disorders
Does Mania Follow the Sun?
CBT for Insomnia
Light and Darkness in Bipolar Disorder
Trintellix and Cognition: A Closer Look
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