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
April 27,2024

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"I always wanted to be in a bar fight," said a US police official after pinning a Black man down on the ground and kneeling on his neck. The man later died at a hospital.

Ohio Police have come under intense scrutiny following the release of body camera footage showing officers pinning a Black man to the ground in a bar, reminiscent of the events that led to George Floyd's death in 2020.

The video, released by the Canton Police Department, captured the moments leading up to the death of Frank Tyson, a 53-year-old man suspected of leaving the scene of a single-car accident on April 18.

In the footage, officers are seen confronting Tyson inside a bar, where an altercation quickly ensues. Despite Tyson's pleas for help and his repeated cries of "I can't breathe," officers wrestle him to the ground and handcuff him, with one officer applying pressure to his back near his neck while saying, "You're fine." 

Tyson continues to plead for relief while lying on the floor. After several minutes, officers notice his lack of responsiveness and proceed to administer CPR. Paramedics arrive on the scene and transport Tyson to a local hospital, where he later dies.

In the body cam footage, one police officer can be heard bragging about how he always wanted to be in a "bar fight" with one of the patrons of the establishment. 

The circumstances surrounding Tyson's death draw chilling parallels to George Floyd's fatal encounter with Minneapolis Police in 2020 which sparked global outrage. 

The officers involved in Tyson's case, identified as Beau Schoenegge and Camden Burch, have been placed on administrative leave pending an investigation by the Ohio Bureau of Criminal Investigation. 

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News Network
April 23,2024

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Hubballi, Apr 23: Karnataka Chief Minister Siddaramaiah on Tuesday spoke to father of slain student Neha Hiremath over phone and said "sorry" over his daughter's killing, and assured that "we will be on your side".

The Chief Minister also informed Niranjan Hiremath, who is also a Congress councillor of Hubballi-Dharwad Municipal Corporation, about the government's decision to hand over the murder case to the Criminal Investigation Department (CID) and setting up a special court to fast-track trial.

"Niranjan... very sorry. We will be on your side," Siddaramaiah told Hiremath over the phone call during state's Law and Parliamentary Affairs Minister H K Patil's visit to Hiremath's house here.

In the conversation on Patil's phone with speakers on, Siddaramaiah can be heard informing Hiremath about the CID probe and setting up a special court.

"It is a serious offence... setting up a special court will ensure punishment for the accused person."

Hiremath thanked Siddaramaiah on behalf of his family well-wishers and the community for handing over the case to CID and setting up a special court "...ensure there is an order at the earliest and provide us justice," he said, as he also thanked Patil, Home Minister G Parameshwara, local Congress MLA Prasad Abbayya and others for their support.

Replying to this, Siddaramaiah said, "We will ensure it, at the earliest."

In a shocking incident, Neha Hiremath (23), was stabbed to death on the campus of BVB College last Thursday. The accused Fayaz Khondunaik, who fled from the scene, was arrested by the police subsequently.

Neha was a first year Master of Computer Application (MCA) student and Fayaz was earlier her classmate.

Siddaramaih on Monday had announced his government has decided to hand over the investigation into the incident to the Crime Investigation Department, and to set up a special court for speedy disposal of the case.

The case of brutal murder, which sparked widespread outrage, has snowballed into a political slugfest between ruling Congress and opposition BJP.

While the ruling party has tried to project it as an incident with personal angle, the saffron party has called it a "love jihad" case and has said it's a testimony of deterioration of law and order in the state.

Earlier, Siddarmaiah's statement that the murder was due to "personal reasons" and Home Minister G Parameshwara's comments that the duo was in love, has elicited sharp reactions from Hiremath and family members and opposition parties.

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News Network
May 4,2024

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Canadian Police said they have arrested three Indians they suspect were part of the alleged hit squad that had killed Hardeep Singh Nijjar, a Sikh separatist leader involved with the Khalistan movement, which calls for an independent Sikh state.

Nijjar's killing had become the epicentre of a diplomatic row between India and Canada last year after Prime Minister Justin Trudeau alleged the role of "Indian agents" in the murder. India had rejected the charge as "absurd" and "motivated".

The three arrested Indians - Karan Brar, 22, Kamalpreet Singh, 22, Karanpreet Singh, 28 - were living as non-permanent residents in Alberta for three to five years, said Superintendent Mandeep Mooker, who leads the Integrated Homicide Investigation Team. The police have also released their photos.

They have been charged with first-degree murder and conspiracy to commit murder, showed court documents.

Police said that none of the suspects were known to them earlier and they were investigating their possible ties to the Indian government.

The murder remains "very much under active investigation," Royal Canadian Mounted Police (RCMP) Assistant Commissioner David Teboul told a press conference on Friday.

"There are separate and distinct investigations ongoing into these matters, certainly not limited to the involvement of the people arrested today, and these efforts include investigating connections to the government of India," CTV News quoted him as saying.

Nijjar, a Canadian citizen who was wanted in India on various terror charges, was shot dead outside a gurdwara in Surrey on June 18, 2023. Trudeau's charge against India sparked a massive row later that year with both countries expelling diplomats of the other country.

A fresh row erupted earlier this week after separatist slogans on 'Khalistan' were raised at an event addressed by Trudeau, prompting New Delhi to summon their Deputy High Commissioner and lodge a strong protest.

On the sidelines of the event, Trudeau told reporters that Nijjar's killing had created a "problem" that he could not have ignored.

India rejected his comment and said it once again showed Canada provides political space given to separatism, extremism, and violence. "This not only impacts India-Canada relations but also encourages a climate of violence and criminality in Canada to the detriment of its own citizens," foreign ministry spokesperson Randhir Jaiswal said.

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