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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November 23,2024

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Bengaluru: In a boost to the ruling Congress in Karnataka, the party on Saturday swept the by-polls to three Assembly segments, causing a major setback to the BJP-JD(S) alliance in the state.

The Congress has retained Sandur, the seat considered to be its strong hold, and has also bagged Shiggaon and Channapatna segments, which were earlier held by BJP and JD(S) respectively.

The November 13 by-polls to Sandur, Shiggaon and Channapatna Assembly segments had witnessed a fierce fight between the ruling Congress and a combative BJP-JD(S) alliance.

The by-polls to Sandur, Shiggaon and Channapatna were necessitated as the seats fell vacant following the election of their respective representatives -- E Tukaram of Congress, former CM Basavaraj Bommai of BJP, and Union Minister Kumaraswamy of JD(S) to Lok Sabha in May elections.

The by-polls witnessed a straight fight between the ruling Congress and BJP in Sandur and Shiggaon segments, while in Channapatna, JD(S) which is part of the NDA alliance took on the grand old party.

Congress' C P Yogeeshwara won the Channapatna segment, defeating JD(S) candidate and Kumaraswamy's son Nikhil Kumaraswamy, by a margin of 25,413 votes.

Former CM Basavaraj Bommai's son Bharath Bommai of BJP faced defeat against Congress' Yasir Ahmed Khan Pathan in Shiggaon Assembly segment by a margin of 13,448 votes.

In Sandur, Congress candidate E Annapoorna, the wife of Bellary MP E Tukaram, won the seat vacated by her husband, by a margin of 9,649 votes.

Congress' win in the by-poll is seen as an endorsement of both Chief Minister Siddaramaiah and his deputy D K Shivakumar's leadership, and the government's programmes, especially the five guarantee schemes.

Nikhil Kumaraswamy and Bharath Bommai, the third generation of Gowda and Bommai family respectively, who contested this bypolls, have lost. Their fathers and grandfathers had served as Karnataka's Chief Ministers in the past.

While for Bharath Bommai this was his electoral debut, for Nikhil it was his third electoral loss.

Among the three segments, Channapatna was considered to be a high profile battle, where the contest was between C P Yogeeshwara and actor-turned-politician Nikhil Kumaraswamy.

A five-time MLA from the segment and a former Minister, Yogeeshwara had joined the Congress after quitting BJP ahead of nomination.

There were plans to field Yogeeshwara on a JD(S) ticket, but he was not interested in it, and instead wanted Kumaraswamy to support him as BJP candidate. This was not acceptable to Kumaraswamy and his party, following which Yogeeshwara jumped ship.

However, Kumaraswamy had subsequently said he had agreed to Yogeeshwara contesting from BJP, and despite that he jumped ship to Congress, under the influence of Deputy Chief Minister D K Shivakumar and his brother and former MP D K Suresh.

Nikhil had faced defeat in 2019 Lok Sabha and 2023 Assembly polls. It is seen as a setback for Kumaraswamy too, as he could not ensure son's win from the Channapatna, the seat he had twice represented in the past.

Congress' win is crucial for Shivakumar, who is also the state Congress chief and his brother Suresh to strengthen their position in their home district of Ramanagara, a Vokkaliga heartland.

In Shiggaon, BJP's Bharath Bommai, son of Basavaraj Bommai lost against Congress' Yasir Ahmed Khan Pathan, who had faced defeat against the former Chief Minister in the 2023 Assembly polls.

Initially, former MLA Syed Azeempeer Khadri, a Congress' ticket aspirant, had raised a banner of revolt in Shiggaon, by filing his nomination as an independent, but later withdrew after intervention by party leadership.

In Sandur, Bellary MP Tukaram's wife E Annapurna of Congress won from the seat vacated by her husband, against BJP ST Morcha president Bangaru Hanumanthu, who is considered close to party leader and former mining barron G Janardhan Reddy.

Sandur is a Congress' bastion, and Tukaram had represented it four times.

Congress winning the by-polls is seen as "crucial" for Chief Minister Siddaramaiah to assert himself , amid demands for his resignation following charges against him in the MUDA site allotment case.

There were also behind-the-scenes political activities within the ruling Congress earlier this year, with a few ministers in his Cabinet holding closed door meetings, fueling speculation about leadership change. But such activities came to a halt following instructions from the party high command.

It is equally important for Shivakumar, who has not shied away from openly expressing his Chief Ministerial ambitions, amid speculations over "rotational Chief Minister formula," according to which he will become CM after two-and-half years (in this govt's five years tenure), but they have not been officially confirmed by the party.

The defeat in this by-poll is seen as a setback for state BJP President Vijayendra, who has been facing intense criticism and opposition from a section within the party, who have raised a banner of revolt against his leadership accusing him and his father, veteran leader B S Yediyurappa of "adjustment politics".

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November 21,2024

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Hamas says the Israeli regime’s sole objective lies in “erasing” the entirety of the Palestinian population from across the Palestinian territories.

Khalil al-Hayya, a ranking official with the Gaza Strip-based Palestinian resistance movement, made the remarks to the Palestinian al-Aqsa TV on Wednesday.

“The occupation targets everyone—it strikes hospitals, civil defense, women, children, and the elderly,” he said, adding that the regime sought to “empty Gaza of its residents, and displace the Palestinian people to fulfill its dreams of building a Zionist Jewish state across all of Palestine.”

The remarks came amid the regime’s October 2023-present war of genocide on the coastal sliver that has so far claimed the lives of nearly 44,000 Palestinians, mostly women and children.

“This unprecedented aggression in modern times evokes scenes from the dark ages of human history, having crossed all red lines and exceeded every expectation of brutality in the modern era,” the Palestinian official lamented.

He also regretted that the regime had added “systematic and dangerous starvation to its aggression, falsely claiming before the world that it allows 250 [aid] trucks into Gaza daily. In reality, the number of trucks is far fewer.”

Hayya, meanwhile, regretted that “scenes of children torn apart, women screaming over their children, and heart-wrenching destruction have failed to stir enough humanity to stop these crimes.”

He decried the United States for vetoing the United Nations Security Council’s resolutions that are aimed at bringing about a potential ceasefire in the war, saying this indicated Washington’s “partnership in the aggression” and a simultaneous siege that the Israeli regime has been enforcing on Gaza.

Addressing Israeli Prime Minister Benjamin Netanyahu, the official asserted that, despite what the Israeli official is after, Hamas would not hand over the regime’s captives “without [the regime’s] stopping the war.”

He called Netanyahu “the main obstacle” in the way of cessation of the aggression, saying the Israeli premier “blocks any progress for political reasons,” and citing his preventing conclusion of a ceasefire agreement in July.

Hayya also warned that the regime sought to expand the war beyond Gaza, but asserted that its goals are “impossible and will never happen.”

“Today, the enemy exposes its true intentions of extermination and displacement, but it will fail,” he stressed.

“The Palestinian people are resilient and will not surrender, as they believe in their humanitarian and political cause. The enemy and its allies will not succeed in achieving their goals. This steadfast people will endure, and the occupation will not prevail against them.”

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November 11,2024

Mangaluru: Six youths including teenagers have been arrested by the Bantwal Rural Police in connection with a brutal assault on 21-year-old Aboobakar (name changed to hide identity), an incident that was widely shared on social media after footage revealed the victim tied to a pole and violently beaten.

The arrested individuals, all from Kanchinadkapadavu, Sajipanadu village in Ullal Taluk, have been identified as Mohammad Sapwan (25), Mohammad Rizwan (25), Irfan (27), Anis Ahmad (19), Nasir (27), and Shakeer (18). According to police reports, the assault took place on November 7 in Kanchinadkapadavu.

The sequence of events began when Aboobakar was reportedly called to a residence in Kanchinadkapadavu by a female relative. Upon his arrival, he was confronted by the accused, who questioned his presence, tied him to a pole with ropes, and attacked him while he was shirtless. 

Aboobakar managed to file a police complaint the following day, detailing the assault. As his injuries worsened, he was admitted to a private hospital in Mangaluru.

While in the hospital, Aboobakar alleged that his attackers intended to kill him during the assault. This statement led to additional charges of attempted murder being filed. 

Police officials stated that the suspects were subsequently apprehended, charged with group assault and attempted murder, and placed in judicial custody. The investigation is ongoing, and further details are awaited.

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