It is known that light exposure suppresses melatonin secretion. Melatonin is a hormone which can influence circadian rhythms. Lower melatonin levels may explain the preliminary evidence of links to cancer.
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And I think people who sort of glibly say, 'Well, you know, they're not going to handle security, UAE is a great ally,' four and a half years ago, they were not an ally, they were working with the enemy, and if those same people are still there today that were there then, these are real serious issues.