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
November 21,2025

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Udupi: The Malpe Police have arrested two men from Uttar Pradesh for allegedly sharing classified information related to Indian Navy vessels with individuals in Pakistan, posing a serious threat to national security.

According to a complaint filed by the CEO of Udupi Cochin Shipyard, Malpe—an institution under the Union Ministry of Ports, Shipping and Waterways—the prime accused, Rohit (29), was working as an insulator through subcontractor M/S Shushma Marine Pvt Ltd. He had earlier served at Cochin Shipyard Limited in Kochi, Kerala, where naval ships are under construction.

Udupi SP Hariram Shankar said the accused had unlawfully shared, via WhatsApp, confidential identification numbers of Navy-related ships and other classified details while working in Kerala, allegedly for illegal gains.

After joining the Malpe shipyard unit, Rohit reportedly continued collecting sensitive information through a friend in Kochi and circulated it to unauthorised individuals, violating national security protocols and potentially endangering India’s sovereignty, unity, and integrity.

Based on the complaint, Malpe Police registered a case under Section 152 of the Bharatiya Nyaya Sanhita (BNS) and Sections 3 and 5 of the Official Secrets Act, 1923.

A police team led by Karkala Subdivision Assistant Superintendent of Police Harsha Priyamvada—along with PSI Anil Kumar D, ASI Harish, and PC Ravi Jadhav—conducted the investigation and arrested the two accused, identified as Rohit (29) and Santri (37), both residents of Sultanpur district, Uttar Pradesh.

The duo was produced before the court, which remanded them in judicial custody till December 3. Further investigation is in progress.

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News Network
November 24,2025

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Israeli forces have pushed over the Syrian frontier, erecting a checkpoint and stopping vehicles in the southwestern city of Quneitra, in yet another breach of the Arab country’s sovereignty.

The violation took place on Sunday, when the troops made their way across the border, setting up the outpost near the Ain al-Bayda junction in northern Quneitra, Syrian outlets reported.

According to the al-Ikhbariya paper, an Israeli detachment positioned itself at the junction, halting cars and conducting searches.

The Syrian Arab News Agency (SANA) reported that three Israeli military vehicles then moved further into the northern countryside, deploying between the town of Jubata al-Khashab and the villages of Ofaniya and Ain al-Bayda. The agency added that a separate Israeli unit mounted a new incursion in the central region, approaching the villages of Umm Batina and al-Ajraf.

Residents said such activities have surged in recent months, pointing to Israeli advances onto farmland, leveling of extensive forested areas, arrests, and spread of mobile checkpoints.

The Israeli regime began markedly increasing its military aggression against Syria last year.

The escalation coincided with increasingly ferocious onslaughts throughout the country by the so-called Hay'at Tahrir al-Sham (HTS) Takfiri terrorist group, which the government of President Bashar al-Assad had confined to northwestern Syria. The HTS, however, managed to overthrow the government as the Israeli attacks would pummel the country’s civilian and defensive infrastructure.

Various reports have shown that, during the escalation, the regime conducted more than 1,000 airstrikes on the Syrian territory and over 400 ground raids into the south.

Following the collapse of the Assad government, Tel Aviv also widened its grip over the occupied Golan Heights by taking control of a demilitarized buffer zone, in defiance of a 1974 Disengagement Agreement. Earlier this month, senior Israeli officials, including Prime Minister Benjamin Netanyahu, visited the buffer zone, prompting expressions of alarm on the part of the United Nations.

The United States, the regime’s biggest ally, has, meanwhile, been fraternizing the HTS head Abu Mohammed al-Jolani amid the widely reported prospect of rapprochement with Tel Aviv.

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News Network
November 22,2025

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The Israeli regime’s forces have killed two Palestinian children in the Gaza Strip every day since the ceasefire began in early October, UNICEF has warned.

The UN children’s agency said on Friday that Israeli forces continue to attack Palestinians in Gaza even though the agreement was meant to stop the killing.

“Since 11 October, while the ceasefire has been in effect, at least 67 children have been killed in conflict-related incidents in the Gaza Strip. Dozens more have been injured. That is an average of almost two children killed every day since the ceasefire took effect,” UNICEF spokesperson Ricardo Pires said in Geneva, reminding that each number in the statistics represents a child whose life had ended violently.

“These are not statistics,” he said. “Each child had a story, a family, and a future that was stolen from them.”

Data from Palestinian factions, human rights groups, and government bodies recorded since the US-brokered ceasefire deal went into effect on October 10 show that Israeli forces have carried out numerous attacks, each constituting a separate ceasefire violation.

UNICEF teams say they repeatedly continue to witness heart-wrenching scenes of fearful Palestinian children sleeping outdoors with amputated limbs, while others live as orphans in flooded, makeshift shelters.

“I saw this myself in August. There is no safe place for them. The world cannot normalize their suffering,” Pires said, lamenting that the UN could “do a lot more if the aid that is really needed was entering faster.”

The UNICEF spokesperson warned that with the advent of winter, the risks for hundreds of thousands of displaced children will increase.

He warned, “The stakes are incredibly high” for children as winter acts as a threat multiplier, where children have no heating, no insulation, and few blankets. He said respiratory infections rise.

“Too many children have already paid the highest price,” Pires said. “Too many are still paying it, even under a ceasefire. The world promised them it would stop and that we would protect them.”

“Now we must act like it,” the UNICEF spokesperson added.

Since the Israeli regime launched its genocidal war against Palestinians in Gaza in October 2023, it has killed nearly 70,000 people in the territory, most of them women and children, and injured over 170,000 more, while reducing most of the structures in the enclave to rubble.

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