Light from smartphones may lessen your sleep quality

Agencies
July 30, 2017

Houston, Jul 29: Artificial light emitted from digital devices such smartphones and tablets could reduce the quality of your sleep, a study has warned.

The largest source of blue light is sunlight, but it is also found in most LED-based devices. Blue light boosts alertness and regulates our internal body clock, or circadian rhythm, that tells our bodies when to sleep.

This artificial light activates photoreceptors called intrinsically photosensitive retinal ganglion cells (ipRGCs), which suppresses melatonin, the hormone that signals your body that it is time to sleep.

"The most important takeaway is that blue light at night time really does decrease sleep quality. Sleep is very important for the regeneration of many functions in our body," said Lisa Ostrin, assistant professor at University of Houston in the US.

In the study, participants, aged between 17 and 42, wore short wavelength-blocking glasses three hours before bedtime for two weeks, while still performing their nightly digital routine.

Results showed about a 58 per cent increase in their night time melatonin levels.

"Those levels are even higher than increases from over- the-counter melatonin supplements," said Ostrin, who led the study published in Ophthalmic & Physiological Optics.

Wearing activity and sleep monitors 24 hours a day, the 22 study participants also reported sleeping better, falling asleep faster, and even increased their sleep duration by 24 minutes a night, according to Ostrin.

Ostrin recommends limiting screen time, applying screen filters, wearing computer glasses that block blue light, or use anti-reflective lenses to offset the effects of artificial light at nighttime.

Some devices even include night mode settings that limit blue light exposure.

"By using blue blocking glasses we are decreasing input to the photoreceptors, so we can improve sleep and still continue to use our devices.

That is nice, because we can still be productive at night," Ostrin added.

 

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News Network
February 17,2020

Feb 17: Chinese authorities on Monday reported a slight upturn in new virus cases and 105 more deaths for a total of 1,770 since the outbreak began two months ago.

The 2,048 new cases followed three days of declines but was up by just 39 cases from the previous day’s figure. Another 10,844 people have recovered from COVID-19, a disease caused by the new coronavirus, and have been discharged from hospitals, according to Monday’s figures.

The update followed the publication late Saturday in China’s official media of a recent speech by President Xi Jinping in which he indicated for the first time that he had led the response to the outbreak from early in the crisis. While the reports were an apparent attempt to demonstrate the Communist Party leadership acted decisively from the start, it also opened Xi up to criticism over why the public was not alerted sooner.

In his speech, Xi said he gave instructions on fighting the virus on Jan. 7 and ordered the shutdown of the most-affected cities that began on Jan. 23.

The disclosure of his speech indicates top leaders knew about the outbreak’s potential severity at least two weeks before such dangers were made known to the public. It was not until late January that officials said the virus can spread between humans and public alarm began to rise.

New cases in other countries are raising growing concerns about containment of the virus.

Taiwan on Sunday reported its first death from COVID-19, the fifth fatality outside of mainland China. Taiwan’s Central News Agency, citing health minister Chen Shih-chung, said the man who died was in his 60s and had not traveled overseas recently and had no known contact with virus patients.

Japanese Prime Minister Shinzo Abe convened an experts meeting to discuss containment measures in his country, where more than a dozen cases have emerged in the past few days without any obvious link to China.

“The situation surrounding this virus is changing by the minute,” Abe said.

Japanese Health Minister Katsunobu Kato said the country is “entering into a phase that is different from before,” requiring new steps to stop the spread of the virus.

Japan now has 413 confirmed cases, including 355 from a quarantined cruise ship, and one death from the virus. Its total is the highest number of cases among about two dozen countries outside of China where the illness has spread.

Hundreds of Americans from the cruise ship took charter flights home, as Japan announced another 70 infections had been confirmed on the Diamond Princess. Canada, Hong Kong and Italy were planning similar flights.

The 300 or so Americans flying on U.S.-government chartered aircraft back to the U.S. will face another 14-day quarantine at Travis Air Force Base in California and Lackland Air Force Base in Texas. The U.S. Embassy said the departure was offered because people on the ship were at a high risk of exposure to the virus. People with symptoms were banned from the flights.

About 255 Canadians and 330 Hong Kong residents are on board the ship or undergoing treatment in Japanese hospitals. There are also 35 Italians, of which 25 are crew members, including the captain.

In China’s Hubei province, where the outbreak began in December, all vehicle traffic will be banned in another containment measure. It expands a vehicle ban in the provincial capital, Wuhan, where public transportation, trains and planes have been halted for weeks.

Exceptions were being made for vehicles involved in epidemic prevention and transporting daily necessities.

Hubei has built new hospitals with thousands of patient beds and China has sent thousands of military medical personnel to staff the new facilities and help the overburdened health care system.

Last Thursday, Hubei changed how it recognized COVID-19 cases, accepting a doctor’s diagnosis rather than waiting for confirmed laboratory test results, in order to treat patients faster. The tally spiked by more than 15,000 cases under the new method.

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News Network
August 7,2020

Kozhikode: An Air India Express flight from Dubai with 190 people on board overshot the Kozhikode tabletop runway on landing there today. The Boeing 737 “fell off” the runway into the valley, broke into two causing death and devastation. 

According to reports, around 20 people were dead including two pilots.

An Air India spokesperson said: “Air India Express flight IX 1344 operated by Boeing 737 aircraft from Dubai to Calicut overshot the runway at Kozhikode at 7.41 pm Friday. No fire reported at the time of landing. There are 174 passengers, 10 infants, two pilots and five cabin crew on board. Rescue operations are on and passengers are being taken to hospital for medical care. We will soon share the update in this regard.”

The Directorate General of Civil Aviation (DGCA) is probing this accident. “Prima facie, the aircraft landed beyond the touchdown point and fell into a valley. It has broken into two. We suspect some casualties. More information is awaited,” said a senior DGCA official.

Taking to twitter, defence minister Rajnath Singh wrote: “Devastating news from Kozhikode, Kerala. I am deeply anguished by the loss of lives due to an accident carrying several passengers on Air India flight. In this hour of grief, my thoughts are with the bereaved families. I pray for the speedy recovery of the injured.”

Foreign minister S Jaishankar tweeted: “Deeply distressed to hear about the Air India Express tragedy at Kozhikode. Prayers are with the bereaved families and those injured. We are ascertaining further details.”

While, senior BJP leader from Kerala K J Alphons tweeted: “Second tragedy of the day in Kerala: Air India Express skids off the run way at Kozhikode, front portion splits , pilot dies and lots of passengers injured . All passengers evacuated. Very lucky the aircraft didn’t catch fire.”

More details are awaited.

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News Network
June 17,2020

New Delhi, 17: Tensions on the Indo-China border have spiked to the highest since 1962 after over 20 troops, including an Indian commanding officer, were killed in the face-off in Galwan valley that has seen a six-week long standoff underway with the Peoples Liberation Army.

The Army said that the soldiers – including the Commanding Officer of 16 Bihar regiment in charge of the area – died while a `de-escalation process’ was underway. Sources said that this death toll could rise up as some soldiers are currently not accounted for after PLA troops attacked with spiked sticks and stones in the Galwan valley.

Chinese side also has casualties but the number is still not known. The Indian death toll is perhaps the worst single day loss in decades and has come at a time when thousands of troops are forward deployed in Eastern Ladakh.

ET was the first to report on May 12 about a massive troop build up in the Galwan valley, which is an old flashpoint that had seen action in the 1962 war as well.

There have been reports of casualties on the Chinese side in the clash but numbers are currently not available. Worryingly, information from the ground suggests that several Indian soldiers, including four officers, are missing and could have been taken captive by a vastly larger Chinese force. Their status is still not known.

“During the de-escalation process underway in the Galwan Valley, a violent face-off took place yesterday night with casualties. The loss of lives on the Indian side includes an officer and two soldiers. Senior military officials of the two sides are currently meeting at the venue to defuse the situation,” an Indian Army statement reads.

The Ministry of External Affairs said that the clash occurred when the Chinese side violated the LAC. “On the late-evening and night of 15th June, 2020 a violent face-off happened as a result of an attempt by the Chinese side to unilaterally change the status quo there. Both sides suffered casualties that could have been avoided had the agreement at the higher level been scrupulously followed by the Chinese side,” a statement reads.

The loss of the Commanding Officer is especially devastating and he had been directly involved in de-escalation talks with the Chinese side, including one hours before the clash took place. Sources said that the talks on Monday morning had led to an agreement for Chinese forces to withdraw from Indian territory as part of the disengagement.

According to one version, the CO had gone to the standoff point with a party of 50 men to check if the Chinese had retreated as promised. As the Indian side proceeded to demolish and burn illegal Chinese structures on its side of the LAC, including an observation post constructed on the South bank of the river, a fresh stand off took place as a large force of Chinese troops returned back.

Sources said that a Chinese force in excess of 250 quickly assembled near Patrol Point 14 and were physically stopped by Indian soldiers from entering Indian territory. Soldiers from both sides did not use firearms but the Chinese soldiers carried spiked sticks to attack.

Given the terrain of the region, a part of the standoff and clash took place in the middle of the Galwan river that is currently flowing at full spate, leading to high casualties as injured soldiers got swept away. Indian soldiers have to cross the Galwan river at atleast five points to reach PP 14, which marks the LAC.

Chinese media reports on Tuesday quoted the spokesperson from its Western Theatre Command as laying claim over the Galwan valley region and blaming the Indian side for the clash. Reports quoted Col Zhang Shuili as saying that India has violated the consensus made during Army commander level talks.

As reported, Galwan river area has a painful history with China, with Peoples Liberation Army (PLA) soldiers surrounding a freshly set up Indian Army post in July 1962, in what would be one of the early triggers to the Sino-Indian war. At an Army post that was overrun at Galwan, 33 Indian soldiers were killed and several dozen taken captive in 1962.

In the past, the Doklam crisis in 2017 saw tensions building up along the Pangong Tso lake as well with soldiers engaging in a fight with sticks and stones. However, the Eastern Ladakh standoff is of a much more serious nature, with over 6000 Chinese troops lined up with tanks and artillery, faced off with a larger Indian forces. Troop build up has also been reported across the borders in Himachal Pradesh, Uttarakhand, Sikkim and Arunachal.

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