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
May 18,2024

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Bengaluru: Karnataka Deputy Chief Minister D K Shivakumar and other state ministers on Saturday rubbished allegations about their role in the circulation of pen drives containing explicit videos involving Hassan MP Prajwal Revanna.

BJP leader and advocate G Devaraje Gowda, who is in custody after being arrested in a sexual abuse case and is also facing charges of video leak, on Friday alleged that Shivakumar and four other ministers are behind the circulation of the pen drives and was being fixed in false cases as he did not agree to be part of their plan.

He has even alleged that he was offered Rs 100 crore by Shivakumar to "bring a bad name" to the BJP and Prime Minister Narendra Modi, and to tarnish the image of JD(S) leader H D Kumaraswamy in Prajwal Revanna's obscene video case.

Speaking to reporters here, Shivakumar said, "Better, let him (Gowda) file a case before Lokayukta or any other agency. I think he has some problems mentally. I'm very sorry, the national and state media shouldn't have picked up such baseless allegations. A person who is in jail, how can he make such allegations? All these are baseless. I don't want to comment." 

Asked if he will be filing any defamation case against Gowda, he said, "I don't want to make any comment or speak on a person who is mentally sick. I appeal to his party people to get him a good treatment." Shivakumar also asserted that his government's commitment to get justice for women victims of the sexual abuse case, and expressed confidence about the Special Investigation Team's (SIT) ongoing probe.

While being taken from court in Hassan, Gowda on Friday spoke to media and alleged that Shivakumar is behind pen drive case, and a team of four Ministers -- N Chaluvarayaswamy, Krishna Byre Gowda, Priyank Kharge and another minister -- was formed to handle this, with an intention to bring bad name to BJP, PM Modi and Kumaraswamy.

He said Shivakumar had asked him to say that Kumaraswamy is behind the distribution of pen drives, but as he did not agree to it, he is being fixed in false cases.

Minister Priyank Kharge said Gowda has alleged that three responsible ministers in the state government were part of a team and that there was a conspiracy. "We will discuss whatever legal course, we will take it." 

"Devaraje Gowda might be doing this to defame Shivakumar and Siddaramaiah. If he had a Rs 100 crore offer, he should have told Amit Shah (Union Home Minister) and get it investigated. He could have got CBI, ED, or IT raids done. Why didn't he do it? Claims have been made that he (Gowda) was sent Rs 5 crore as advance at a club, let them get CCTV footage and see who were all there," Kharge said.

While speaking to reporters here, he further said Gowda is a lawyer. When he was deposed before the Judge he should have told about the documents he has and should have presented to the court.

Minister Chaluvarayaswamy said allegations about the role of Shivakumar and a team of ministers being formed to oversee the circulation of pen drives are 'baseless', and he questioned Gowda's morality to make such accusations.

"If Gowda proves that Chaluvarayaswamy, Priyank Kharge and Krishna Byre Gowda had held a meeting on this case and we as a team were given responsibility and we were involved in this case, I will apologise," he said and alleged that Gowda was being used to mislead and deviate from the main case of sexual abuse.

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News Network
May 12,2024

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Mangaluru: Dakshina Kannada Zilla Panchayat High School in Harekala, popularly known as Padma Shri awardee Harekala Hajabba’s school, is gearing up to inaugurate its first batch of Pre-University (PU) courses starting June 1. 

The government issued an order to elevate the school established by Padma Shri awardee Harekala Hajabba to the status of a PU College a few months ago.

The School Education and Literacy Department (PU Education) has formally sanctioned the upgrade for the school.

CD Jayanna, the deputy director of PU Education, confirmed that all necessary approvals have been obtained from the government to initiate PU classes.

“Hajabba’s school will kick off PU classes for its inaugural batch on June 1. We have appointed a senior lecturer as the interim principal for the PU college. Presently, the school possesses the essential temporary infrastructure to begin the I PU batch. Plans are underway to enhance the infrastructure for the PU college in the future. Currently, the school boasts adequate classrooms and facilities to commence PU classes,” stated Jayanna.

Harekala Hajabba, an orange vendor, personally erected the school in his native village, New Padpu in Harekala, situated approximately 35 km from Mangaluru. For several years, he has tirelessly petitioned the government for the establishment of a PU college.

Expressing his gratitude, Hajabba mentioned that 19 students who recently completed their SSLC examinations are poised to enroll in the new PU college. He added, “We anticipate enrollment from neighboring villages as well. Both the interim principal and the PU education department have been diligently orchestrating the necessary arrangements to initiate classes.” 

He extended his appreciation to the government, local representatives, and officials for their unwavering support.

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News Network
May 17,2024

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Hamas says the Israeli regime’s bombing of the Gaza Strip, which is enduring a genocidal Israeli war, has killed 70 percent of the Zionist captives, who have been held by the Palestinian resistance movement since an October operation.

Khalil al-Hayya, deputy chief of Hamas’ Political Bureau, announced the information in an interview with Lebanon’s al-Manar television network on Thursday.

“The Zionist enemy wants to recover the remaining captives by force, killing them by bombing,” he said.

Around 250 people were taken captive on October 7 last year during Al-Aqsa Storm, a retaliatory operation by Gaza’s resistance groups.

At least 35,272 Palestinians have died in an Israeli war of genocide that began following the operation.

Hamas released 105 of the captives during a week-long truce in late November.

Hamas recently agreed to another truce proposal enabling cessation of the Israeli aggression and release of the rest of the captives. The Israeli regime, however, rejected the proposal.

The Hamas’ official said, “The latest proposal presented to us comes very close to our demands, but the enemy has not respected the proposal or the mediators.”

Al-Hayya reiterated the movement’s demands, saying any potential truce agreement had to mandate a complete and comprehensive cessation of the Israeli aggression, withdrawal of all Israeli forces from Gaza, and then a captive exchange deal.

‘Victory is our ally’

The Hamas’ official pointed to the Israeli regime’s failure to realize its war goals, including defeating the resistance.

“After eight months of aggression, the enemy has failed to eradicate the resistance in Gaza despite all the actions of the occupation,” he said.

“The resistance has rebuilt itself and can adapt its capabilities to face the occupation,” the official said, asserting, “The resistance is capable of enduring for many months and will continue to defend its people as long as the battle is ongoing.”

“The resistance has the ability to continue because it is right, and victory is our ally, while the enemy will face defeat.”

Thanking regional resistance

Elsewhere in his remarks, al-Hayya expressed gratitude towards the regional resistance groups for the pro-Palestinian operations that they have been carrying out against Israeli targets and those associated with the occupying regime.

“The fronts in Yemen, Lebanon, and Iraq support Gaza and link the cessation of [their] operations to the end of aggression on Gaza,” he said.

“When we meet with the resistance forces in the region, we affirm that the battle is one.”

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