- It is unclear if sunlight and vitamin D can lower the risk of anxiety.
- Sunlight and vitamin D do reduce some of the diseases that may lead to anxiety.
Anxiety is a feeling of nervousness, apprehension, fear, or worry. Anxiety may interfere with the ability to sleep or otherwise function.
Anxiety disorder can arise from:
- Treatment for an illness
- Psychological factors
Sunlight exposure and anxiety disorder risk
There have been no reported studies on how sunlight benefits the risk of anxiety.
A study of Antarctic expeditioners did not find any link between vitamin D levels and immune function. However, as vitamin D levels dropped, immune function decreased.
It should be noted that drugs used to treat anxiety disorder may be photosensitive. They may degrade in ultraviolet light from the sun.
Vitamin D and anxiety disorder
Vitamin D levels
Studies of vitamin D benefits on anxiety disorder have met with mixed results:
- In Finland, mice without functional vitamin D receptors had increased levels of anxiety. Vitamin D receptors help turn genes on or off. However, this finding was not confirmed in similar Australian experiments.
- People with fibromyalgia were studied in Belfast. Those who also had anxiety and depression were more likely to have lower vitamin D levels.
- In Italy, a study of patients on chronic hemodialysis found no correlation between vitamin D levels and symptoms of anxiety.
How vitamin D works
Vitamin D may lower the risk of diseases that may cause anxiety. These diseases include cancers and cardiovascular disease.
In general, there is weak evidence that vitamin D reduces the risk of anxiety. Additional studies are required to determine if a link exists and also the required levels of vitamin D.
More studies are needed to determine if higher vitamin D levels would benefit people with anxiety.
Find out more…
We will be adding a detailed evidence summary on this topic in the near future. Please check back soon to find out more.
Page last edited: 17 May 2011