Increased risk of cancer because ... night out

If you live in a big city that is brightly lit from LED bulbs and often out in the evening, the risk will double and the risk increases 1.5 times.

Large-scale research by the University of Exeter (UK) and the Barcelona Global Health Research Institute (WHO - WHO member) has issued an appeal across Europe to reduce light exposure green from LED.

One of the most important parts of this study is a detailed analysis of hormonal changes in the body of 4,000 volunteers in Spain, who live in large cities, are constantly active at night and heavily exposed. with strong light with blue spectrum from LEDs, signs, technology devices. Without color adjustment (as in the signs), this light will be white when viewed with the eyes.

Brilliant cities with lights can be harmful to your health - (photo: NEWSWEEK).

The most severely affected hormone is melatonin . The amount of melatonin secreted in the body of these people is severely reduced. Meanwhile, melatonin plays an important role in regulating the day-night cycle of biological concentrations, which is a powerful natural antioxidant and anti-inflammatory of the body.

These hormonal changes have doubled the risk of prostate cancer among male volunteers and the risk of breast cancer among female volunteers increased by 1.5 times.

Several other communities were also surveyed through epidemiological reports and night images taken from the International Space Station, to identify areas with too high night light.

Dr. Manolis Kogevinas, from the Barcelona Global Health Research Institute, said: "The WHO International Agency for Cancer Research classifies night shift jobs as a possible human cancer. The evidence indicates an association between nighttime exposure to artificial light with disruption of circadian rhythms, breast cancer and prostate cancer ".

Dr. Alejandro Sánchez de Miguel (University of Exeter) said the blue light spectrum in mobile phones and computers at night also led to the same risk.

In early April, many health officials in Europe warned that LED street lights with strong light being favored in many cities could disrupt people's sleep and damage their eyesight. The American Medical Association has also called on US cities to use LED lights at the lowest possible intensity and to have shielding to reduce glare.

In the UK, after the study was published, dozens of city councils are hastily planning to replace LED street lamps with traditional orange spectrum lamps (yellow lights).