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United States Surgeon General Vivek Murthy delivers remarks during a news conference with White House Press Secretary Jen Psaki at the White House in Washington, July 15, 2021.

Tom Brenner | Reuters

U.S. Surgeon General Vivek Murthy warned in a new advisory Tuesday that widespread social media use among kids and teens poses a significant mental health risk that needs to be addressed immediately.

Such advisories are “reserved for significant public health challenges that require the nation’s immediate awareness and action,” according to a report released by the Surgeon General’s office. The report is based on “a substantial review of the available evidence,” on the impact of social media.

It’s not the first time Murthy has called out social media as contributing to a public health threat. In 2021, he issued an advisory about the threat of Covid misinformation and called on social media companies to make changes that favor fact-based sources. He’s also previously said that age 13 is “too early” to use social media.

In the latest advisory, Murthy concedes that social media can have both positive and negative effects on kids. Social media is used almost universally among youth, the report says, with up to 95% of people between ages 13 and 17 reporting using it. The report says that social media use in kids and teens can result in both “heightened emotional sensitivity” that can lead to lower life satisfaction as well as positive spaces of community, information and self-expression. The sense of community young social media users may get online could be even more significant for kids from marginalized backgrounds, the report said.

“A majority of adolescents report that social media helps them feel more accepted (58%), like they have people who can support them through tough times (67%), like they have a place to show their creative side (71%), and more connected to what’s going on in their friends’ lives (80%),” according to the report.

Still, the downsides of social media use can also be impactful. It can lead to or exacerbate disordered eating, low self-esteem and depression, according to studies the Surgeon General’s office cited.

“At this time, we do not yet have enough evidence to determine if social media is sufficiently safe for children and adolescents,” the report says. “We must acknowledge the growing body of research about potential harms, increase our collective understanding of the risks associated with social media use, and urgently take action to create safe and healthy digital environments that minimize harm and safeguard children’s and adolescents’ mental health and well-being during critical stages of development.”

Some areas where the Surgeon General’s office calls for more research include distinguishing the impact on the health of in-person versus digital social interactions, what kind of content results in the most harm to young users and what factors can protect kids from harmful effects of social media use.

Even though more research is needed, the Surgeon General warns that action can’t wait.

“Our children and adolescents don’t have the luxury of waiting years until we know the full extent of social media’s impact. Their childhoods and development are happening now,” the report says. “At a moment when we are experiencing a national youth mental health crisis, now is the time to act swiftly and decisively to protect children and adolescents from risk of harm.”

The warning dovetails with calls from parents, Congress and the president to pass laws that will create greater protections for kids online. Still, figuring out how to do that without unintentionally creating new harms to self-expression or privacy can be challenging.

The Surgeon General lays out several recommendations for policymakers, tech companies, parents and caregivers, young social media users and researchers. They include:

For policymakers:

  • Create “age-appropriate health and safety standards.”
  • Require more data privacy protections for kids.
  • Fund future research.
  • Support digital and media literacy education in schools.
  • Require tech companies to share health-related data.

For tech companies:

  • Run independent assessments on the impact of their products on kids.
  • Share findings and underlying data with researchers.
  • Have timely systems to address complaints and requests from young users and their families and educators.
  • Prioritize health and safety in designing products.

For parents and caregivers:

  • Set expectations about how technology should be used.
  • Create “tech-free zones” like at dinner or before bedtime.
  • Create shared practices around social media with other parents.

For kids and teens:

  • Seek help if they or a friend are being harmed by social media, like by finding expert information on the Center of Excellence on Social Media and Youth Mental Health or by calling or texting the suicide hotline 988 if they or a friend are in crisis.
  • Be careful about sharing too much information on social media
  • Report online harassment or abuse.

For researchers:

  • Determine best practices for healthy social media use.
  • Create standardized definitions and measurements to discuss social media and mental health outcomes.
  • Determine the role of the developmental stage on the progression of poor mental health outcomes as a result of social media use.

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Chinese autonomous driving firm Pony.ai sees shares drop 12% in Hong Kong debut

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Chinese autonomous driving firm Pony.ai sees shares drop 12% in Hong Kong debut

A Pony.ai autonomous car.

Pony.ai

China’s Pony.ai on Thursday saw its shares drop over 12%, while rival WeRide fell nearly 8% as the autonomous driving companies began trading in Hong Kong.

Pony.ai and WeRide, which are already listed in the U.S., raised 6.71 billion Hong Kong dollars (about $860 million) and HK$2.39 billion, respectively in their initial public offerings.

The companies are striving to keep pace with larger competitors such as Baidu‘s Apollo Go in China and Alphabet‘s Waymo in the U.S. amid growing interest in autonomous technologies.

Pony.ai and WeRide, both headquartered in Guangzhou, China, stated that funds would go toward scaling efforts, and the development of Level 4 autonomous driving — a measure of driving automation that does not require human monitoring or intervention under specific environments. 

WeRide CEO Tony Xu Han told CNBC that proceeds from the latest fundraising would also be used to boost the company’s artificial intelligence capabilities and data center capacity.

The listings in Hong Kong come as the companies seek to expand outside of China, where they have already begun operating fully autonomous robotaxis in some cities. 

The new regions include the Middle East, Europe and Asian countries such as Singapore. They have yet to receive full approvals to operate their robotaxis in most of those regions.

In the U.S., both companies are aiming for a partnership with California-based Uber to allow them to deploy their robotaxis on the firm’s ride-hailing platform after receiving regulatory approval.  

However, their U.S. plans face headwinds as earlier this year the government finalized a rule effectively banning Chinese technology in connected vehicles, including self-driving systems. 

“With the uncertainty in the markets around the world and the fact that there would be intense scrutiny on a Pony or WeRide trying to enter the U.S. market, a dual listing is a lot about risk mitigation,” said Tu Le, founder and managing director at Sino Auto Insights. 

He added that the listings were also an acknowledgement that it’s gonna take a lot of capital and an endorsement of a market outside the U.S. for Pony.ai and WeRide to succeed.

In U.S. trading on Wednesday, shares Pony.ai closed down about 2%, while WeRide fell 5.3%.

Hong Kong IPO shift

Pony.ai and WeRide’s competing listings highlight a recent trend of Chinese companies seeking dual listings in Hong Kong, which has been a bounce-back year for the city’s IPO market.  

The companies received approval from Hong Kong regulators to dual list in mid-October. 

“For the HK stock exchange, clustering the listing at the same time helps to reinforce investor perception of HK as a tech-hub for Asia-focused technology companies,” Rolf Bulk, equity research analyst at New Street Research told CNBC. 

In May, Chinese battery manufacturer and technology company CATL completed a secondary listing in Hong Kong, raising $5.2 billion in the world’s largest IPO so far this year.

The growing trend emerges amid geopolitical tensions and regulatory uncertainty in the U.S. 

According to New Street Research’s Bulk, the Hong Kong listings for Pony.ai and WeRide will help the companies gain access to Asia-based capital and expand their presence in China and the region.

“However, it will do nothing to advance the progress of their technology stack and regulatory approvals in Western markets. If anything, gaining approval in Western markets may be more challenging with a HK secondary listing,” he added. 

The listings could also help the firms keep up with competitors such as Baidu‘s Apollo Go in China and Alphabet‘s Waymo in the U.S., which currently have larger fleets. 

“Pony and WeRide are right up there among the global leaders,” said Sino Auto Insights’ Le. “WeRide has diversified their service portfolio a bit more but they both see Uber and the Middle East as two viable partners in their ability to get more pilots launched outside of China.”

“Investors should pay special attention to how their technology evolves with AI and other new tools becoming more mainstream,” Le said.

— CNBC’s Elaine Yu contributed to this report.

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Microsoft letting employees raise concerns about products after Middle East controversy

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Microsoft letting employees raise concerns about products after Middle East controversy

Microsoft President Brad Smith speaks at a press conference at the Representation of the State of North Rhine-Westphalia about future visions for the development and application of artificial intelligence in education in NRW in Berlin on June 4, 2025.

Soeren Stache | Picture Alliance | Getty Images

Microsoft is giving employees a way to raise concerns about the uses of its technology after controversy emerged over the company’s work in the Middle East.

An internal portal for Microsoft’s 200,000-plus workers now includes an option to request a “Trusted Technology Review,” Brad Smith, the company’s president, wrote in a memo that was disclosed in a securities filing on Wednesday. It’s designed for bringing up misgivings about the ways Microsoft builds and uses technology, he said.

“Our standard non-retaliation policy applies, and you can raise concerns anonymously,” Smith wrote.

The move comes weeks after Microsoft stopped providing some services to an Israeli defense unit. In August, The Guardian said the Israeli Defense Forces’ Unit 8200 had built a system in Microsoft’s Azure cloud for tracking Palestinians’ phone calls as part of the country’s invasion of Gaza, leading Microsoft to investigate the newspaper’s assertions.

Employees protested the company’s work with Israel, leading to firings and resignations.

Microsoft’s business has been on a tear, with its stock reaching a record last week, as OpenAI and other companies have deepened their reliance on Azure for running artificial intelligence models. Yet there’s been internal stress due to layoffs, return-to-office mandates and controversy surrounding Microsoft’s contracts.

A media report in July also described the U.S. Defense Department’s dependence on Microsoft engineers located in China.

Microsoft, which celebrated its 50th birthday in April, now sees opportunities to boost its governance.

“We are working to strengthen our existing pre-contract review process for evaluating engagements that require additional human rights due diligence,” Smith wrote.

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Doordash stock sinks 9% as company misses earnings, says it expects further spending

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Doordash stock sinks 9% as company misses earnings, says it expects further spending

A DoorDash bag on a bicycle in New York, US, on Tuesday, May 6, 2025.

Yuki Iwamura | Bloomberg | Getty Images

DoorDash reported third-quarter earnings that missed analyst expectations and said it expects to spend “several hundred million dollars” on new initiatives and development in 2026.

The stock sank 9% following the report.

Here’s how the company did compared to LSEG estimates:

  • Earnings: 55 cents per share vs 69 cents per share expected
  • Revenue: $3.45 billion vs $3.36 billion expected.

“We wish there was a way to grow a baby into an adult without investment, or to see the baby grow into an adult overnight, but we do not believe this is how life or business works,” the company wrote in its earnings release to explain the boosted spending.

DoorDash said it is developing a new global tech platform that progressed in 2025 but is expected to accelerate in 2026, noting the direct and opportunity costs in the near term. The company announced its Dot autonomous delivery robot in September.

The food delivery platform’s revenue increased 27% from a year earlier.

DoorDash posted net income of $244 million, or 55 cents per share, in Q3, up from $162 million, or 38 cents per share, a year ago.

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Total orders grew 21% over the prior year to 776 million during the quarter that closed Sept. 30, just above the 770.13 million expected by FactSet.

The company expects Adjusted EBITDA for the fourth quarter in the range of $710 million to $810 million, a midpoint of $760 million. Analysts polled by FactSet expected $806.8 million for Q4.

DoorDash closed its acquisition of British food delivery company Deliveroo on Oct. 2, a deal that valued the UK company at about $3.9 billion.

The company expects a depreciation and amortization expense of $700 million for the fiscal year, exclusive of the acquisition. A stock-based compensation expense of $1.1 billion is also expected for fiscal 2025.

DoorDash expects Deliveroo to add $45 million to adjusted EBITDA in Q4 and about $200 million to adjusted EBITDA in 2026.

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