Several large population studies, have shown a clear link between a woman’s exposure to light at night and breast cancer. A similar link has been shown with prostate cancer in men. The risk is greatly increased for:

  1. Those who frequently do not go to sleep until after 1:30 a.m.
  2. Those who have the brightest bedrooms.
  3. Late-night shift workers (and the longer they work nights, the greater the risk).

The study published in the Journal of the National Cancer Institute concludes that this is the result of a chronic suppression of melatonin – an anti-cancer hormone that is produced by the body only in the dark.
– Journal of the National Cancer Institute

Dr. Keith and Laurie Nemec’s comments on turn off the lights.

Research published by the National Cancer Institute conclude that when people do not get enough sleep, or they are exposed to light when they sleep, it results in a chronic suppression of melatonin, an anti cancer hormone that is produced by the body only in dark. What they found was the risk is greatest for those who don’t go to sleep until very late, especially after 1:30 a.m. in the morning, those who have any light in their bedrooms, and late night shift workers, the longer they work nights, the greater the risks.

The important thing is, how do we counter act this? We counter act this by number one following the sleep guidelines. Sleep studies have shown the number of hours of sleep ideal for health and healing in a human being is 9.5 hours, with at least 3.5 before midnight. What does that mean? It means you are in bed by between 8:00 and 9:00 and you wake up at 6:00. Now for many you will say this is unrealistic, so what I say to you is get to bed as early as you can and wake up as early as you can and start making changes even if it just thirty minutes or fifteen minutes earlier each night or when you can. The other thing is critical make sure your bedroom is dark. Do not have any lights on, any night lights, any lights at all that are perceivable and also if light comes in from the outside from the streetlights, purchase shades that have light blocking, which means they do not permit any light to come through the shade. Another important thing to affect health and healing are the Seven Basic Steps to Total Health

Now, if a person was on a night shift and they could not switch their job, they can still balance their health at a higher level if they do the other 6 of the 7 Basic Steps. The average American breaks most all of them, so in all these studies, we are taking typical Americans that are breaking all the steps. If you can live 6 of those 7 steps at a high level, the body will absorb that 7 steps not being ideal, so that recommendation is when you cannot sleep 9.5 hours or when you have to work a late night shift, make sure you are living the other 6 of the 7 Basic Steps to Total Health at the highest level you possibly can.