Science & Technology
Study documents headaches experienced by astronauts in space
Research in the expanding field of space medicine has identified many ways in which a microgravity environment and other factors can meddle with the human body during space missions. A new study has added to the field by showing that astronauts are more likely to experience headaches in space than previously known.
The study involved 24 astronauts from the U.S., European and Japanese space agencies who traveled aboard the International Space Station for up to 26 weeks. All but two of them reported experiencing headaches in space.
This was a larger proportion than the researchers had expected based on prior anecdotal evidence. The headaches - some resembling migraines and others resembling tension headaches - occurred not only during the first couple of weeks in space as the body goes through the process of adapting to microgravity, but also later.
The headaches occurring during the early period often present as migraine-like while those experienced later in space travel present more like a tension headache, the study found.
"We hypothesize that different mechanisms are involved for the early headache episodes - the first one to two weeks in space - versus later headache episodes," said neurologist WPJ van Oosterhout of Zaans Medical Center and the Leiden University Medical Center in the Netherlands, lead author of the study published this week in the journal Neurology, opens new tab.
"In the first week, the body has to adapt to the lack of gravity, known as space adaptation syndrome. This phenomenon is similar to motion sickness, and can cause nausea, vomiting and dizziness, and headaches," Van Oosterhout said. "The later headaches could result from an increase in intracranial pressure. Due to microgravity, there is more fluid accumulating in the upper part of the body and head, resulting in higher pressure in the skull."
Migraines experienced on Earth are often throbbing and pulsating headaches lasting four to seven hours, accompanied by symptoms such as nausea, vomiting and hypersensitivity to light and sound, Van Oosterhout said. Tension-type headaches on Earth usually are a more dull pain felt over the entire head without those other symptoms, Van Oosterhout added.
The astronauts - 23 men and one woman, with an average age of about 47 - were aboard the International Space Station for missions that took place from November 2011 to June 2018, with a total of 378 headaches reported by 22 of the 24 astronauts during a total of 3,596 days in orbit. None of the 24 reported headaches in the three months after returning to Earth.
Thirteen of the astronauts were from NASA, six from the European Space Agency, two from Japan's JAXA and one from the Canadian Space Agency. None had ever been diagnosed with migraines prior to their space missions and none had a history of recurrent headaches.
Various documented effects of space travel include bone and muscle atrophy, changes in the brain, cardiovascular system and immune system, issues with the balance system in the inner ear and a syndrome involving the eyes. Cancer risk from greater radiation exposure in space is another concern.
Experts are unsure of how much of a barrier these effects might be on human space travel over extended periods, for instance for journeys to our neighboring planet Mars or beyond.
"The honest answer is that we don't know the effects of long-duration space travel - possibly years - on the human body," Van Oosterhout said. "It is clear that even short-term - days or weeks - to medium-term - weeks or months - duration exposure to microgravity already has some effects, mostly reversible, on the human body. This is a clear task for the field of space medicine." - Reuters
Science & Technology
Australia’s under-16 social media ban sparks anger and relief
Australians reacted on Friday with a mixture of anger and relief to a social media ban on children under 16 that the government says is world-leading, but which tech giants like TikTok argue could push young people to "darker corners of the internet".
Australia approved the social media ban for children late on Thursday after an emotive debate that has gripped the nation, setting a benchmark for jurisdictions around the world with one of the toughest regulations targeting Big Tech, Reuters reported.
The law forces tech giants from Instagram and Facebook owner Meta Platforms to TikTok to stop minors from logging in or face fines of up to A$49.5 million ($32 million). A trial of enforcement methods will start in January, with the ban to take effect in a year.
"Platforms now have a social responsibility to ensure the safety of our kids is a priority for them," Australian Prime Minister Anthony Albanese said on Friday
"We're making sure that mums and dads can have that different conversation today and in future days."
Announcing the details of the ban earlier this month, Albanese cited the risks to physical and mental health of children from excessive social media use, in particular the risks to girls from harmful depictions of body image, and misogynist content aimed at boys.
In Sydney on Friday, reaction to the ban was mixed.
"I think that's a great idea, because I found that the social media for kids (is) not really appropriate, sometimes they can look at something they shouldn't," said Sydney resident Francesca Sambas.
Others were more scathing.
"I'm feeling very angry, I feel that this government has taken democracy and thrown it out the window," said 58-year-old Shon Klose.
"How could they possibly make up these rules and these laws and push it upon the people?"
Children, meanwhile, said they would try to find a way around the ban.
"I feel like I still will use it, just secretly get in," said 11-year-old Emma Wakefield.
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Countries including France and some U.S. states have passed laws to restrict access for minors without a parent's permission, but the Australian ban is absolute. A full under-14s ban in Florida is being challenged in court on free speech grounds.
Albanese's Labor party won crucial support from the opposition conservatives for the bill that was fast-tracked through the country's parliament as part of 31 bills pushed through in a chaotic final day of parliament for the year.
The government has said enough notice was given as it first flagged the ban after a parliamentary inquiry earlier this year that heard testimony from parents of children who had self-harmed due to cyber bullying.
But it was criticised by social media firms and some lawmakers who say the bill has lacked proper scrutiny.
A spokesperson for TikTok, which is hugely popular with teen users, said on Friday the process had been rushed and risked putting children into greater danger.
"We're disappointed the Australian government has ignored the advice of the many mental health, online safety, and youth advocacy experts who have strongly opposed the ban," the spokesperson said.
Albanese said on Friday passing the bill before the age verification trial has been completed was the correct approach.
"We've got your back is our message to Australian parents," Albanese said.
"We don't argue that its implementation will be perfect, just like the alcohol ban for under 18s doesn't mean that someone under 18 never has access, but we know that it's the right thing to do."
The ban could strain Australia's relationship with key ally the United States, where X owner Elon Musk, a central figure in the administration of president-elect Donald Trump, said in a post this month it seemed a "backdoor way to control access to the Internet by all Australians".
It also builds on an existing mood of antagonism between Australia and mostly US-domiciled tech giants. Australia was the first country to make social media platforms pay media outlets royalties for sharing their content and now plans to threaten them with fines for failing to stamp out scams.
Science & Technology
South Korea authorities launch probe after three die in Hyundai car test
The Ulsan plant is Hyundai’s biggest manufacturing facility, with its own port and an annual production capacity of 1.4 million vehicles
South Korean authorities launched an investigation on Tuesday after three people died during a car test at a Hyundai Motor plant in the city of Ulsan, police told Reuters.
The two Hyundai researchers and one Hyundai contractor were found unconscious in a car at around 3:00 p.m. while they were testing it in a "chamber," according to Hyundai's labour union.
South Korean media reports said the three had suffocated.
A police officer in Ulsan said the police and the labour ministry were investigating the incident, including its cause.
A fire department official told Reuters that it first received a report at 3:17 pm that the accident happened at Hyundai's No.4 factory.
"Hyundai Motor Company is deeply saddened by the incident that occurred at our plant in Ulsan, South Korea," Hyundai said in a statement, saying it would "cooperate fully with all relevant authorities to determine the cause of this incident."
The Ulsan plant is Hyundai's biggest manufacturing facility, with its own port and an annual production capacity of 1.4 million vehicles, including exports of 1.1 million units.
In November last year, Hyundai Motor broke ground on a 2 trillion won ($1.44 billion) plant in Ulsan dedicated to making electric vehicles in South Korea, as the automaker accelerated a shift away from petrol-powered cars.
[embed]https://youtu.be/KrLKCrpLALU[/embed]
Science & Technology
Russia fines Google more than the world’s total GDP over YouTube bans
Russia has fined Google $2.5 decillion after the US tech giant took action against pro-Kremlin TV channels on YouTube following Moscow’s invasion of Ukraine.
Russia imposed a daily fine four years ago - a fine that has since swelled to an unprecedented level - ($20,000,000,000,000,000,000,000,000,000,000,000 - a 33-digit figure).
To put this into perspective, global GDP reaches an estimated $110 thousand billion (12-digit figure), according to the IMF.
Speaking to Russia’s TASS news agency, one expert, Roman Yankovsky from the HSE Institute of Education, said Google “clearly will not pay this penalty, and the Russian Federation will not be able to recover this money from the company."
Euronews reported that a short calculation shows that he is right.
Google's holding company, Alphabet, has a market capitalisation of slightly more than $2 trillion. Even with earnings of $80.54 billion from the last quarter, the tech giant doesn’t seem to be able to afford to pay the fine.
Google first barred pro-Moscow channel Tsargrad TV, which is owned by oligarch Konstantin Malofeev, four years ago.
At the time, Google was fined a daily penalty of 100,000 roubles and warned that amount would double every 24 hours if it went unpaid.
The original fine has been compounded by further penalties after Google eventually blocked a total of 17 Russian TV channels as a result of international sanctions, The Telegraph reported.
The tech giant now owes a staggering $2.5 decillion.
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