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Light at night linked to high blood pressure, diabetes

I don't know a single person who, from dusk to dozing off, isn't exposed to some kind of electrical lighting, especially in these darkest of winter days. Unfortunately, study after study is coming out linking this nighttime lighting to various ailments, almost always due to the effect light has on melatonin suppression.

The latest findings, via a study just accepted for publication in The Journal of Clinical Endocrinology & Metabolism, finds that exposure to electrical light between dusk and bedtime "strongly suppresses melatonin levels and may impact physiological processes regulated by melatonin signaling, such as sleepiness, thermoregulation, … Read more

More evidence that light at night ups cancer risk

I woke up at 2 this morning to the red glow of the Netflix end-of-movie screen again. To my own peril, it seems.

New research out of the University of Haifa shows a clear link between light at night and cancer in mice, with the suppression of melatonin playing a key role.

Earlier studies at Haifa demonstrate that, of people living in areas with higher nighttime illumination, men are more susceptible to prostate cancer and women to breast cancer than those who live in darker areas.

In this study, which involves many of the same researchers, the team wanted to … Read more