13 Jul 2018

LIGHT EXPOSURE DURING SLEEP MAY INCREASE INSULIN RESISTANCE

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Chronic overnight light exposure could have long-term effects on metabolic function

According to preliminary results from a new study, nighttime light exposure during sleep may affect metabolic function. The aim of this study was to test the hypothesis that light exposure at night during sleep adversely impacts metabolic outcomes.

According to preliminary results from a new study American Academy of Sleep Medicine , nighttime light exposure during sleep may affect metabolic function.

The aim of this study was to test the hypothesis that light exposure at night during sleep adversely impacts metabolic outcomes.

Light exposure overnight during sleep has been shown to disrupt sleep, but these data indicate that it may also have the potential to influence metabolism.”

Twenty healthy adults ages 18 to 40 were randomized into Dark-Dark (DD) or Dark-Light (DL) groups and run in parallel for a three day and two night stay.

Results show that a single night of light exposure during sleep acutely impacts measures of insulin resistance. Insulin resistance was higher in the DL groups, due to increased insulin levels for DL compared to DD group.

Insulin resistance is the diminished ability of cells to respond to insulin action transporting glucose out of the bloodstream and precedes the development of type 2 diabetes.

Other effects of insulin resistance can be obesity, poor concentration, fatigue poor memory, PCOS, breast and prostate cancer, hypertension, and atherosclerosis.

These results are important given the increasingly widespread use of artificial light exposure, particularly at night.

Our bedrooms should be in total darkness.  There should not be any light from outside, or from electrical appliances. We should not be able to see our hand in front of our face.

If this is not possible a sleep mask could be worn.

Herbal medicines that can help reduce insomnia and promote a restful sleep include Zizyphus, Passionflower, Valerian, Chamomile. Lavender and Kava,

https://www.facebook.com/MaureenFinckNaturopath?ref=hl

 

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