I was unaware of it until I came across the paper on which this thread is based that there was a large literature linking exposure to artificial light to health problems. To supplement the paper, let's look at two of these that point indirectly at Parkinson's.
Parkinson's associated with melanoma. [1]
Quote:
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"Among the individuals with PD who died, the authors observed 48 cases of melanoma. The estimated RR for melanoma in patients with PD who died was 1.95; and an increased risk for death with PD was noted among the patients with melanoma (RR, 1.65)."
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Melanoma associated with artificial light. [2]
Quote:
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"epidemiological data suggest ... a higher prevalence of melanoma in pilots and aircrews, with increased risks with higher time zones travelled; and increased melanoma risks in office workers exposed to fluorescent lighting"
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Parkinson's associated with prostate cancer. [1]
Quote:
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Researchers also found prostate cancer in 212 patients with PD who died (RR, 1.71) and an increased risk for death with PD was found among the prostate cancer patients (RR, 1.39),"
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Prostate cancer associated with artificial light. [3]
Quote:
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"the countries with the highest level of exposure to nightly artificial light demonstrate a jump of 80 percent -- 157 patients per 100,000 inhabitants."
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References
[1] "Study Examines Association Between Parkinson Disease, Cancer"
Sep 3, 2012
http://www.sciencedaily.com/releases...0903221130.htm
[2] "Are some melanomas caused by artificial light?"
Are some melanomas caused by artificial light?
Marina Kvaskoff, Philip Weinstein
http://www.ncbi.nlm.nih.gov/pubmed/20347530
[3] "Light linked to prostate cancer "
Feb 3, 2009
http://www.upi.com/Health_News/2009/...4881233680656/
John