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Excessive phone and screen use tied to manic symptoms for one group, study finds

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Excessive phone and screen use tied to manic symptoms for one group, study finds

A recent study from the University of California, San Francisco, indicates that pre-teens with greater exposure to certain types of tech use could be at a higher risk of developing manic symptoms.

Published in the journal Social Psychiatry and Psychiatric Epidemiology, the study analyzed a nationwide sample of 9,243 children in the U.S. between 10 and 11 years old.

Young people who spent more time engaged with social media, texting, videos and video games were more likely to have “inflated self-esteem, decreased need for sleep, distractibility, rapid speech, racing thoughts and impulsivity — behaviors characteristic of manic episodes, a key feature of bipolar-spectrum disorders,” a press release noted.

LIMIT OF 3 HOURS OF WEEKLY SCREEN TIME FOR KIDS HAS ‘POSITIVE EFFECT’ ON BEHAVIOR, MENTAL HEALTH: STUDY

“This study underscores the importance of cultivating healthy screen use habits early,” said co-author Kyle Ganson, PhD, assistant professor at the University of Toronto’s Factor-Inwentash Faculty of Social Work, in the release. 

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“Future research can help us better understand the behaviors and brain mechanisms linking screen use with manic symptoms to help inform prevention and intervention efforts.”

Excessive use of social media, texting, videos and video games by young people of certain ages was linked to a higher risk of mental health issues in a recent study. (Georgijevic/iStock)

Tips for safer use from experts

To mark the Global Day of Unplugging (March 7), Verizon hosted its first-ever “digital wellness summit” in New York City to share insights with the public about the safe use of technology.

Sowmyanarayan Sampath, CEO of Verizon Consumer Group, discussed the importance of setting digital boundaries, especially for kids.

Digital wellness should be for every age, but really we need a new blueprint as parents, because we’ve never been through this before,” Sampath said at the event in the Big Apple. 

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“There is a healthier relationship people can have.”

“This digital age is new to us all. There’s no time in history we can reclaim how we handle that.”

In a separate interview with Fox News Digital, Sampath shared compelling statistics on phone use, including findings from Verizon’s 2024 Consumer Connections Report.

Kids and teenagers use social media for four to five hours a day and receive between 250 and 275 notifications daily, the report revealed.

Sowmyanarayan Sampath, CEO of Verizon Consumer Group, at right, is shown at the Verizon Digital Wellness Summit on March 6, 2025, in New York City. At left, actor and talk-show host Drew Barrymore. (Angelica Stabile/Fox News Digital)

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Kids were also found to touch and pick up their phones about 150 times per day. 

A quarter of these events occurred during school hours.

“This is what sparked us to think there is a healthier relationship people can have,” Sampath said.

Tech’s impact on kids

Dr. Keneisha Sinclair-McBride, attending psychologist at Boston’s Children’s Hospital and an assistant professor at Harvard Medical School, also spoke at a panel at the Verizon event and in a follow-up interview with Fox News Digital.

The expert noted that kids spending “hours and hours” of their free time on their phones can be “problematic,” especially considering the possibility that they’ll experience threats such as cyberbullying and hate speech.

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“We know that these are associated with depressive symptoms and other mental health concerns,” she said. 

“We also know that there’s so much positive for social connection, learning and fun, so we have to balance those two things.”

She pointed out that some social media apps are “designed to keep you stuck” through the loop of an algorithm.

Socializing with others can have a positive impact on kids’ moods, experts suggested. (iStock)

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This problematic use can lead to poorer functioning at work or school and can negatively impact sleep and relationships, Sinclair-McBride warned.

“Are they able to live their life and do the things they want and need to do in a positive way? If there are concerns in any of those areas, that’s usually a sign of something needing to be reassessed.”

Prompts for parents, grandparents

Sinclair-McBride encouraged parents and grandparents to learn about the apps children are using and teach them to be “critical consumers” of content by training them to detect scams, misinformation or AI-generated content.

“Slowing down and being more thoughtful and mindful about what you’re doing is, I think, the first step in modeling that as a parent,” she told Fox News Digital.

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“Parents can also look at their own use and [ask], ‘Am I on my phone too much? Am I too addicted to social media?’”

The CEO also urged adults to set boundaries involving phone use, whether it’s limited to certain spaces in the home or specific times of day.

“When you do things in real life, you feel happier.” (iStock)

‘Create space to have fun’

Sampath shared simple advice for families to ensure a healthy balance between tech use and unplugged activities.

“Go for a movie. Go for a walk. Go and play a game or just hang out with friends. Or just hang out with your family in your kitchen and do fun things,” he suggested.

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“I think kids are going to have to be comfortable sometimes doing nothing … reading a book, just hanging out,” he said. 

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“Kids are going to have to get way more comfortable doing that – that’s part of a healthy boundary, and it’s part of a good relationship with technology.”

Sampath also encouraged Americans to take advantage of living in areas with “some of the best weather” and “the best natural sights in the world” by exploring outdoor spaces and moving more.

“The time that people spend with digital technology needs to be balanced with real-life stuff, whether it’s sports, the arts, creative activities, reading or actual hands-on, tangible things.” (iStock)

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“You want to create space to have fun. You want to create space to play. You want to create space to have physical activity, to have real relationships,” he said. 

“It has long-term benefits on mental health … When you do things in real life, you feel happier.”

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Sinclair-McBride echoed the advice to get outside and “touch grass.”

“The time that people spend with digital technology needs to be balanced with real-life stuff, whether it’s sports, the arts, creative activities, reading or actual hands-on, tangible things,” she said. 

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Experts advocated for kids to be given more time to explore tangible activities and hobbies instead of defaulting to digital. (iStock)

“I think people are in this mindset that this generation only wants to do digital, digital, digital,” she added. 

“They still like other stuff, too. We have to give them options, space and freedom to have that time.”

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Matt Damon’s Gluten-Free Diet Helped Him Lose 18 Pounds

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Matt Damon’s Gluten-Free Diet Helped Him Lose 18 Pounds


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Deadly cancer risk could drop with single 10-minute workout, study suggests

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Deadly cancer risk could drop with single 10-minute workout, study suggests

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A single 10-minute workout may trigger blood changes that help fight colon cancer.

That’s according to new research from scientists at Newcastle University, who found that exercise quickly changes the blood in ways that affect colon cancer cells in the lab.

In the study, the U.K. researchers exposed colon cancer cells to human blood serum collected immediately after exercise, finding that the cells repaired DNA damage faster and showed gene activity patterns linked to slower growth.

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The blood samples came from 30 adults who had just completed a short, high-intensity cycling workout that lasted about 10 to 12 minutes, according to a press release.

Even a 10-minute burst of intense exercise may send protective signals through the blood that affect colon cancer cells, researchers say. (iStock)

Samuel T. Orange, an associate professor at Newcastle University and one of the study’s authors, spoke with Fox News Digital about the findings.

“Our findings show that exercise rapidly triggers molecular changes in the bloodstream that can act directly on colon cancer cells, reshaping gene activity and supporting DNA damage repair,” he said.

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The results suggest that even brief activity can make a difference. “Every movement matters. Exercise doesn’t need to last hours or happen in a gym,” Orange added.

The research suggests that exercise quickly triggers changes in the blood that affect colon cancer cells and helps support DNA repair. (iStock)

One of the most surprising findings, according to the researcher, was how strong the biological response was after even a single workout.

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“Exercise altered the activity of more than 1,000 genes in colon cancer cells,” he shared.

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Even brief bouts of activity can make a difference, the researcher said.  (iStock)

The study findings suggest that the effect is driven by exercise-triggered molecules released into the bloodstream, sometimes referred to as “exerkines,” which act like chemical messengers and send signals throughout the body.

“Each time you exercise, you trigger biological signals that support health and resilience to diseases such as cancer, diabetes and heart disease,” Orange said.

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The researchers cautioned that the study was conducted using cancer cells grown in the laboratory, not in patients.

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The findings are based on experiments using colon cancer cells grown in the lab, not studies conducted in people, the researchers noted. (iStock)

The study involved 30 healthy male and female volunteers between the ages of 50 and 78. Their blood samples were used to carry exercise-triggered signals to cancer cells grown in the lab.

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“These findings now need to be replicated in people with cancer,” Orange said. “We also need to better understand the longer-term effects of repeated exercise signals over time.”

Despite the limitations, the researcher said the findings strengthen the case for exercise as an important part of colon cancer prevention.

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“Each time you move your body and get a little breathless, you’re contributing to better health and may help influence biological processes linked to bowel cancer,” he added.

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Brain Health Challenge: Try a Brain Teaser

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Brain Health Challenge: Try a Brain Teaser

Welcome back! For Day 4 of the challenge, let’s do a short and fun activity based around a concept called cognitive reserve.

Decades of research show that people who have more years of education, more cognitively demanding jobs or more mentally stimulating hobbies all tend to have a reduced risk of cognitive impairment as they get older.

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Experts think this is partly thanks to cognitive reserve: Basically, the more brain power you’ve built up over the years, the more you can stand to lose before you experience impairment. Researchers still don’t agree on how to measure cognitive reserve, but one theory is that better connections between different brain regions corresponds with more cognitive reserve.

To build up these connections, you need to stimulate your brain, said Dr. Joel Salinas, a neurologist at NYU Langone Health and the founder and chief medical officer of the telehealth platform Isaac Health. To do that, try an activity that is “challenging enough that it requires some effort but not so challenging that you don’t want to do it anymore,” he said.

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Speaking a second language has been shown to be good for cognition, as has playing a musical instrument, visiting a museum and doing handicrafts like knitting or quilting. Reading is considered a mentally stimulating hobby, and experts say you’ll get an even bigger benefit if you join a book club to make it social. Listen to a podcast to learn something new, or, better yet, attend a lecture in person at a local college or community center, said Dr. Zaldy Tan, the director of the Memory and Healthy Aging Program at Cedars-Sinai. That adds a social component, plus the extra challenge of having to navigate your way there, he said.

A few studies have found that playing board games like chess can be good for your brain; the same goes for doing crossword puzzles. It’s possible that other types of puzzles, like those you find in brain teaser books or from New York Times Games, can also offer a cognitive benefit.

But there’s a catch: To get the best brain workout, the activity should not only be challenging but also new. If you do “Wordle every day, it’s like well, then you’re very, very good at Wordle, and the Wordle part of your brain has grown to be fantastic,” said Dr. Linda Selwa, a clinical professor of neurology at the University of Michigan Medical School. “But the rest of your mind might still need work.”

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So play a game you’re not used to playing, Dr. Selwa said. “The novelty seems to be what’s driving brain remodeling and growth.”

Today, we want you to push yourself out of your cognitive comfort zone. Check out an online lecture or visit a museum with your challenge partner. Or try your hand at a new game, below. Share what novel thing you did today in the comments, and I’ll see you tomorrow for Day 5.

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