How dangerous is 'bathing' in blue light?

Doctor Pham Anh Ngan, University of Medicine and Pharmacy Hospital, Ho Chi Minh City - Facility 3, said that in urban spaces, besides electric light, blue light from electronic devices is covering us.

>>> Health in the 4.0 era: Eating - sleeping - going to the toilet also 'hugging' the phone

Alarming problem

Blue light (High Energy Visible - HEV) is a type of short-wavelength, high-energy light emitted from devices such as smartphones, tablets, computers, etc. According to research published in 2020 by GlobalWebIndex, each person spends an average of 6 hours and 54 minutes a day on electronic devices, this number is increasing, even the continuous use of phones even when eating, going to the toilet, moving, staying up all night surfing social networks is an alarming problem today.

Blue light from phones can cause many harmful effects on health

"Continuous exposure to blue light, especially in the evening and before going to bed, inhibits the secretion of melatonin, a hormone necessary for sleep. Disorders include: Difficulty falling asleep, difficulty maintaining sleep, frequent waking in the middle of the night, etc. In addition, the amount of blue light emitted at a close distance through electronic devices is easily dispersed in the eyes, reducing image contrast and causing visual discomfort," Dr. Ngan shared.

Many unexpected side effects

Sharing the same opinion, Dr. Vo Thi Ngoc Thu - Department of Neurology - Nam Sai Gon International General Hospital, said that most people check their phones at the last second before going to bed and put their phones near the bed. This is a serious problem that can cause insomnia and many other health problems.

Continuous exposure to blue light, especially in the evening and before bed, can affect mental health.

According to Dr. Ngoc Thu, a meta-analysis published in the journal BMC Psychology in April 2023 showed a link between excessive exposure to electronic device screens and mental health problems in adults.

Nowadays, the phone is an item that is closely associated with many people's lives.

In particular, using technological devices all night can reduce performance in studying and working the next day. Fatigue caused by staying up late can reduce the ability to remember and concentrate.

Additionally, using phones at night may also be linked to prolonged sitting, lack of exercise, and other unhealthy habits like irregular eating, leading to long-term health problems like obesity and cardiovascular disease.

Don't use your phone in the toilet.

According to Dr. Nguyen Minh Thuan, Nam Sai Gon International General Hospital, the toilet is a humid place and pathogens also appear from here. Using the phone while going to the toilet is a habit of many people. However, this habit can increase the risk of infections, hemorrhoids, rectal diseases, increase the risk of cerebral anemia, and have a negative impact on joints and lower limbs.

"Holding the phone while sitting in the toilet for a long time causes the body's weight to impact the anus, affecting blood circulation in the hemorrhoidal veins. At this time, blood cannot circulate, accumulates and causes the hemorrhoidal veins to swell," Dr. Thuan analyzed. (To be continued).

49% of people use their phones more than 4 hours a day

According to a quick survey by Thanh Nien on July 31 from the article Health in the 4.0 era: Eating - sleeping - going to the toilet also 'hugging' the phone , 49% of people use the phone more than 4 hours a day; 23% use from 2-4 hours; 19% use from 1-2 hours; 9% use the phone less than 1 hour. The quick survey has a total of 147 votes.

Source link: https://thanhnien.vn/suc-khoe-thoi-40-tam-trong-anh-sang-xanh-nguy-hai-nhu-the-nao-185230725215726263.htm