And that's what we're going to do.

I'd be more comfortable sleeping with just a little light. In fact, it's amazing information about the relationship between artificial light and our bodies and blood sugar and causes of weight gain.

The connection between lighting and sleep.

You know, when humans take in vitamin D in the sun, sunlight plays an important role in nutrition that food doesn't, but it actually contains a different relationship between population lighting and the body?

Light is a drug.

According to neuroscientist George Brenard, sleep in a dark room is important for restful sleep.
It's not just because light has an artificial effect on blood pressure, blood sugar, and body temperature, and it affects our body and sleep cycles by means of signals from our brains.
Originally, humans get up with the sun and go to bed with the sun setting.
But in modern life there is electricity, and by being out of control of its principles and by lighting lights at night, signals from the brain are creating a illusion of daylight.
So it seems that light is a drug.

Watch out for the light before you go to bed.

I hear that by turning off lights early in bed and by getting the lights out in the room before bedtime, you can suppress melatonin levels.
In animals, one of the hormones is secreted from the pygmy glands of the brain. Reference:Ｗｉｋｉ）

It's not just a website.

It's said that the LEDs and blue lights, like the monitors on the computer, are one of the things that you want to be careful about.
It is also said that these lights are one of the causes of sleep disorders.

It might be good to review such things as obesity, sleep disorders, and insomnia in children.

It seems that even these symptoms are affected.

• Weight Increase
• Immunization
• Depression
• Cancer risk.
• Early Age

And that's what we're going to do.

It's important since obesity, diabetes, adults and children sleep in a dark room.
I hope it's a good start as part of the health check, including the above symptoms.

Source:io9