New Orleans-The U.S. Department of Energy wants to know whether changing the light bulbs in the daytime office can reduce your risk of certain serious chronic diseases.

Therefore, they invited some local researchers to participate in a new study to find out.

In 40 years of research, Dr. David Blask and his team at Tulane University warned us that exposure to light at night disturbs our circadian rhythm. That is our 24-hour internal clock.

"So the light period in our lives has quietly entered the dark period, which has serious consequences for our health," said Dr. David Brask, professor of structure and cell biology at Tulane University.

He said it would increase the incidence of cancer, especially breast cancer, which is a metabolic syndrome that is a sign of pre-diabetes, obesity, depression and heart disease.

The natural cycle is to obtain blue light during the day, then orange and red at sunset, and then complete darkness at night. This indicates that the body produces an important hormone-melatonin.

"It certainly helps sleep, but it is also an anti-cancer hormone. It is an anti-inflammatory hormone. It has an important positive effect on metabolism."

They also conducted animal studies, taking out laboratory fluorescent lamps and putting in blue-rich LED bulbs to mimic sunlight. It led to a discovery.

"During the day, when this kind of light exists in the animal room of our mice or rats, when we observe the melatonin in their blood at night, it shows blue-rich LED lights, and we see them The peak level of melatonin has increased by 7 times. Melatonin,” said Dr. Blask.

Now Dr. Blask is involved in a new study. Will the blue light in buildings during the day promote people's metabolic health like in animals?

"In the course of the day, all these parameters of the rodents have improved. Their blood sugar levels have decreased. Insulin levels have decreased. Cortisol has decreased."

Most buildings are equipped with fluorescent lights in all colors of the spectrum, but in a doctor's office equipped with blue-rich LED lights, you can see the difference.

In a year or so, we can know if part of your health routine is to replace your office light bulbs with blue-rich light bulbs.

Computers and mobile phones emit blue light, so when used at night, they can also disrupt natural circulation. The doctor said that using anti-blue glasses would help.

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