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Stroke Risk Could Be Flagged Early Using Apple Watch Technology, Studies Show

The latest research shows that wearables could soon be a vital part of tracking your heart health.

For millions at risk of stroke, a simple tap on the wrist could one day save lives. New studies from the Amsterdam University Medical Center and St. Bartholomew’s Hospital in London showed that wearables, such as the Apple Watch, can improve the detection of atrial fibrillation compared to standard care. Atrial fibrillation, often referred to as A-fib, is a heart arrhythmia, which means an irregular or abnormal heartbeat. The condition can cause blood clots and is one of the leading causes of a stroke. 

The Amsterdam study enrolled 437 patients aged 65 or older with elevated stroke risk and required 219 of them to wear an Apple Watch to track their heart rate for 12 hours a day for 6 months. The remaining 218 patients didn’t wear a watch and relied on standard care. 

The experiment detected heart arrhythmias four times more frequently in patients wearing an Apple Watch versus those who didn’t. Specific versions of the Apple Watch use photoplethysmography, a heart rate-detecting LED light sensor, and have a built-in single-lead electrocardiogram sensor to read your heart rate.


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Wearables that track heart rate and other health markers aren’t new, and previous studies have shown promise in detecting A-fib. Although wearables are known to track this type of data, no prior research has examined how well they detect potential health risks for A-fib. 

“We saw that after six months we diagnosed and treated 21 patients in the group wearing the smartwatch, of whom 57% were asymptomatic,” said Michiel Winter, a cardiologist at Amsterdam UMC, in a statement. “This was against just five diagnoses in the group receiving standard care, all of whom experienced symptoms.”

The second clinical study, conducted by St. Bartholomew’s Hospital, showed that the Apple Watch could also be beneficial for detecting A-fib symptoms earlier and for monitoring patients after a standard treatment, such as a catheter ablation. The hospital found that patients could record clinical-grade ECGs on their Apple Watches at home when experiencing symptoms. Similar to the first study, the hospital found that patients using an Apple Watch detected A-fib earlier and more frequently than those receiving standard care. Catching symptoms earlier also reduces anxiousness and the likelihood that a patient will need to be hospitalized. 

The findings from these studies show that wearables such as the Apple Watch could be used for long-term heart screening to detect heart health abnormalities and improve patient care for those in treatment. And it can help diagnose those who don’t know they have the condition.

“Using smartwatches with PPG and ECG functions aids doctors in diagnosing individuals unaware of their arrhythmia, thereby expediting the diagnostic process,” said Winter. 

Technologies

Washington’s major crypto bill stalls as SEC forges ahead

The SEC has proposed new rules to simplify crypto custody for advisers and funds, aiming to update outdated requirements and expand investment options. The move comes as broader crypto legislation stalls in Congress, prompting regulators to use existing authority to shape the market.

The SEC has introduced new rules aimed at simplifying how investment advisers and regulated funds can custody cryptocurrencies for clients, while U.S. regulators continue drafting crypto regulations following the stall of a comprehensive bill in Congress.

Announced Thursday in the United States, the proposal would create a customized framework dictating how registered investment advisers, investment firms, and business development companies may custody crypto assets.

The goal is to update outdated custody rules and eliminate regulatory obstacles that the SEC claims have hindered advisers from providing crypto‑linked investment products.

Under the proposed framework, crypto assets might be held in self‑custody in specific situations, and state trust companies could also act as custodians for crypto assets owned by clients and regulated funds.

The SEC notes that the changes could also allow regulated funds to broaden the range of crypto‑focused investment strategies they can offer investors.

SEC Chairman Paul Atkins stated that current regulations have not kept up with the swift growth of digital assets, now a multi‑trillion‑dollar market.

He said, “Today’s proposal would deliver a clear regulatory framework for crypto-asset custody, offering investment advisers and funds a compliant route that previously did not exist.”

The proposal arrives as U.S. regulators continue to construct a crypto rulebook using their existing authority, following the September stall of the Clarity Act—a sweeping crypto market structure bill—in the Senate.

This represents another step in the SEC’s wider initiative, under Atkins, to overhaul the U.S. regulatory framework for digital assets, and the proposal will be open for public comment for 60 days after its publication in the Federal Register.

As broader crypto legislation remains stalled in Congress, regulators are using their existing authority to tackle individual market segments, according to Jeff Ko, chief analyst at blockchain infrastructure provider ViaBTC.

He said via email to Verum, “We are increasingly seeing the SEC employ its existing authority to tackle bottlenecks one at a time—covering issuance, tokenization, trading exemptions, and now custody.”

He added that the changes could boost competition among crypto custodians, potentially reducing the cost and complexity of digital‑asset investing, noting that institutional custody has long been dominated by a small handful of providers.

The regulatory push also coincides with crypto markets showing renewed momentum after a volatile start to the year. Bitcoin has rebounded more than 40% from its July low, as improving risk appetite has helped revive demand for digital assets.

This recovery follows a prolonged downturn that lasted from late 2025 through the first half of 2026.

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Technologies

Passengers and crew foil co-pilot’s apparent attempt to crash FlyDubai flight to Israel

One of the pilots on a FlyDubai flight headed for Israel stabbed the second pilot, according to Israeli Prime Minister Benjamin Netanyahu.

On-duty flight crew and passengers managed to foil a pilot’s apparent attempt to crash a FlyDubai flight, after reports emerged of a fight in the cockpit.

The incident on flight FZ1073 from Dubai to Tel Aviv happened when a co-pilot stabbed a pilot, according to Israeli Prime Minister Benjamin Netanyahu, who praised the victim’s quick thinking.

“Despite being stabbed and seriously injured, he fought back, resisted, opened the cockpit door, and enabled passengers and crew to overpower the attacker — preventing a catastrophic mid-air disaster. He saved the lives of 174 people, including Israeli citizens and other nationals,” Netanyahu wrote in a post on X.

FZ1073 was diverted to the Tabuk airport in Saudi Arabia, the airline said, after being successfully secured and diverted by flight crew.

FlyDubai in a statement said that an “altercation” occurred on the flight deck of the plane, but did not mention a stabbing.

However, the airline added that the underlying reasons and motives for the clash is currently unknown, urging all parties to refrain from speculation.

The injured pilot was identified by Netanyahu as Indian national Smit Machchhar. No details have been released on the identity of the attacker, except that he was being interrogated by Saudi authorities.

The Indian embassy in Riyadh said on X that Machchhar is in a hospital in Tabuk, and is reported to be in stable condition.

The Israeli Prime Minister also identified the passenger who broke into the cockpit as Yaniv Hayun, calling him a “hero” and adding he deserved “a global medal of honor.”

Flight data from tracking site FlightRadar24 showed that the plane had experienced extreme altitude fluctuations before broadcasting a “general emergency” squawk code.

FZ1073 had dropped from over 14,000 feet in just 29 seconds, and FlightRadar24 also added that vertical speeds ranging from approximately -30,000 to +10,000 feet per minute were observed from the transponder data.

For context, vertical speeds during normal operations rarely exceed plus or minus 4,000 feet per minute, it added.

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Technologies

South Korean President Lee resists Alaska LNG project after Trump highlights Seoul’s involvement

South Korean President Lee Jae‑myung has conditioned his country’s participation in the Alaska LNG project on financial viability and legal compliance, pushing back against President Trump’s push for the $50‑billion venture while other $200‑billion U.S. investments move forward.

South Korea’s $200 billion investment in the United States, which President Donald Trump said would transform America “for generations,” is not yet finalized in full.

The South Korean investment blueprint includes nuclear power plants, a natural‑gas power facility in Texas, and potentially the long‑planned Alaska liquefied natural gas project.

Trump posted on Truth Social late Wednesday that the two nations had agreed to move forward on the Alaska LNG venture, estimating its value at $50 billion. This prompted a response from South Korean President Lee Jae‑myung, who stressed that participation in some projects remains tied to commercial considerations.

In an X post Thursday local time, Lee said that involvement in the Alaska LNG project hinges on its financial viability and legal compliance. He added that investments in nuclear power plants would also require a plant‑by‑plant assessment of commercial feasibility.

The US‑South Korea joint statement Wednesday also noted that work on the project is contingent on “commercial reasonableness,” without detailing allocations toward the venture.

The Alaska LNG project aims to move natural gas roughly 1,300 km (800 miles) from fields on Alaska’s North Slope to the state’s southern region, where it would be liquefied for export to markets including Asia, according to Yonhap. The initiative has long faced scrutiny over its economics, given the substantial upfront capital required.

Industry Minister Kim Jung‑kwan labeled it “high‑risk” last year and said participation would be challenging unless the project could generate sufficient cash flow.

Overall, the investment package allocates $22.3 billion for a 6,472‑megawatt natural‑gas power plant in Encinal, Texas, which will supply electricity to nearby data centers. The venture will be led by developer Related Cos. and U.S. power provider NextEra Energy.

Trump said the investments would turn South Korea’s commitments into “huge construction projects” and create “tens of thousands of American jobs.”

“These are massive energy projects, adding power capacity in the United States,” Trump remarked. “This is new construction, new manufacturing, and great jobs for American workers.”

The two countries said they would seek to broaden Korean firms’ involvement in the Texas project across equipment supply, engineering, construction, and long‑term operations and maintenance. The U.S. also plans to give Korean companies opportunities to supply equipment, including turbines, for similar projects domestically.

Another $120 billion has been earmarked for plans to build eight large‑scale nuclear reactors in the United States. Of that sum, $100 billion is designated for construction costs and $20 billion for contingency reserves.

The nuclear accord was signed by both governments as well as Westinghouse Electric, Korea Electric Power Corp., and Korea Hydro & Nuclear Power. The plan also calls for Korean firms to pursue a potential significant minority stake in Westinghouse, with terms subject to commercial negotiations.

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