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No type of bullying is acceptable, but cyberbullying can be harder for parents to spot because it takes place via cellphone, computer or tablet, often through social media. Cyberbullying can be a hateful text message or post of embarrassing pictures, videos and even fake profiles of the victim. Victims are often bullied in person, too, and have a harder time escaping it. But unlike facing a bully at school, cyberbullying can happen 24/7, even when your child is home with you. Messages and images can be posted anonymously and spread in no time. And it can be difficult or even impossible to find the culprit. The consequences of being cyberbullied are far-reaching. Young victims are more likely to use alcohol and drugs, skip school, lose self-esteem and develop health problems. What can parents do? The website Stopbullying.gov recommends being proactive — talk with your kids about cyberbullying, including why they should never bully others, and encourage them to tell you about any incident right away. Friending or following your kids on social media may help you know if they become the victims of unwanted postings. More tips for parents: Teach kids not to share anything that could hurt or embarrass them or others to avoid retaliation. Regularly check your kids’ social network pages to look for signs of bullying behavior, such as mean images of… read on >

The term artificial intelligence (AI) might bring to mind robots or self-driving cars. But one group of researchers is using a type of AI to improve lung cancer screening. Screening is important for early diagnosis and improved survival odds, but the current lung cancer screening method has a 96 percent false positive rate. But in the new study, investigators were able to reduce false findings of lung cancer without missing any actual cases. A low-dose CT scan is the standard diagnostic test for people at high risk of lung cancer. In the United States, about one-quarter of these scans reveal shadows indicating nodules in the lung. Despite that positive result, fewer than 4 percent of those patients actually have cancer. “A positive test creates anxiety, increases health care costs, and the follow-up tests are not risk-free,” said study co-author Panayiotis Benos. He’s vice chairman of computational and systems biology at the University of Pittsburgh. “For the 96 percent of people who have benign nodules, these procedures are unnecessary. So, we try to mine the data to tell which are benign and which are malignant,” Benos explained in a university news release. Benos and his colleagues entered CT scan data from 218 high-risk patients into a machine learning algorithm — a form of artificial intelligence — to create a model that calculates the probability of cancer.… read on >

The switch to Daylight Saving Time can increase the risk of driver fatigue and crashes, but there are a number of ways to reduce the danger, an expert says. “Any time change can exacerbate drowsiness because your internal clock has not adjusted to the time change. This can lead to disruptions in sleep until your body adjusts, which can take a few days to a week,” said Jeff Hickman, a research scientist at the Virginia Tech Transportation Institute in Blacksburg. After clocks spring ahead one hour at 2 a.m. on Sunday, try to avoid driving during rush hours and in early morning, when crash risk increases, he suggested. Driving between 2 a.m. and 4 a.m. is particularly dangerous, because your circadian rhythm is at its lowest during this two-hour period. Drivers should try to sleep at least seven to eight hours, Hickman said. But one night of good rest may not be enough if you have had several sleepless nights. If that’s the case, you’ll need several nights of restful sleep to compensate. Watch for signs of drowsy driving, including slow eyelid closures, yawning, gentle swaying of the head, fidgeting in the seat, trouble staying in your lane, difficulty maintaining speed and slow reactions, Hickman said in a Virginia Tech news release. Be extra careful in situations that increase drowsiness, including driving alone, monotonous road… read on >

When a social media “influencer” hawks junk food, young kids may be easily won over, a new study suggests. British researchers found that when children saw images of two famous YouTube “vloggers” simply holding junk food, they immediately showed a craving for cookies and candy. Unfortunately, they were not similarly swayed by images of those online stars with healthy foods. Experts said the findings point to the power of an insidious form of junk food marketing, in which companies pay social media influencers to feature their products. “Most parents are surprised this exists,” said Jennifer Harris, of the University of Connecticut’s Rudd Center for Food Policy and Obesity. “They often have no idea how targeted their kids are when they’re online.” Harris, who was not involved in the study, conducts research on food marketing to kids. She said that in comparison to traditional advertising, it’s difficult to study the influence of social media on kids’ food preferences. “There isn’t a lot known about it, because it’s hard to track what kids are seeing on social media,” Harris explained. So she said she was “excited” to see the new findings, published online March 4 in the journal Pediatrics. They show, through an experimental design, how social media images can immediately influence kids’ food choices, Harris said. For the study, researchers from the University of Liverpool created… read on >

(HealthDay News) — Screen devices such as smartphones and TVs are making children more sedentary, the American Heart Association says. This lack of movement is linked to obesity in young people. Experts recommend that parents limit children aged 2 to 5 to one hour of screen time per day. Older children are also cautioned against too much screen time, although no specific time limit has been noted.

If you’re in a frequent tug of war with your kids over turning off their gadgets, it could be the tactic you use when you try to persuade them to disengage. It turns out that giving 1- to 5-year-olds a time warning that screen viewing is about to end makes the transition away from a tablet, smartphone TV or other device more painful, according to University of Washington researchers. Gadgets play a role in a growing number of households with little children. There are positives, such as helping distract toddlers during unpleasant events like getting a shot. But kids also get attached to gadgets quite easily, and getting them to put down a tablet or smartphone can be a challenge. Tech-driven situations that worsen the problem include the “autoplay” feature, which automatically starts another video when one ends, and video teasers that pop up and tempt children to keep watching. Kids’ attachments to their gadgets are so strong that some manufacturers, like Apple, have added functions to make limiting screen time easier. The University of Washington research, which included interviews and diaries from 28 families, did uncover ideas that can work. One option is to establish a regular routine, like a set time of day for gadget usage and a set amount of viewing time, such as the length of one show. Its ending makes… read on >

By itself, post-traumatic stress disorder (PTSD) doesn’t raise the risk of heart disease for U.S. veterans, a new study finds. “Instead, a combination of physical disorders, psychiatric disorders and smoking — that are more common in patients with PTSD versus without PTSD — appear to explain the association between PTSD and developing cardiovascular disease,” said study author Jeffrey Scherrer. He’s research director in the department of family and community medicine at Saint Louis University School of Medicine in Missouri. For the study, Scherrer and his colleagues analyzed health records of more than 2,500 veterans with PTSD and more than 1,600 without PTSD. The veterans were aged 30 to 70 and had not been diagnosed with heart disease in the previous 12 months. The study participants were followed for at least three years. During that time, veterans with PTSD were 41 percent more likely to develop circulatory and heart disease than those without PTSD. Those with PTSD had significantly higher rates of smoking, depression, anxiety disorders, sleep disorders, type 2 diabetes, obesity, high blood pressure and high cholesterol than those without PTSD, the investigators found. However, no single condition explained the association between PTSD and heart disease, according to the study published online Feb. 13 in the Journal of the American Heart Association. The findings may not apply to patients older than 70 or to civilians,… read on >

Time spent on Instagram, Snapchat or Facebook probably isn’t driving teenagers to depression, a new study contends. In fact, Canadian researchers found the relationship worked in the opposite direction — teenage girls who were already depressed tended to spend more time on social media, to try to feel better. These findings run counter to a series of recent studies that said teens and young adults were more likely to grow depressed if they used social media more often. But those studies only looked at adolescents’ depression and social media use at one point in time, taking a single survey “snapshot” that couldn’t assess which factor influences the other, explained Pamela Rutledge, director of the Media Psychology Research Center in Santa Barbara, Calif. The new study looked at people over time and tried to make sense of their behaviors over time, said Rutledge, who was not involved in the research. “To me it makes a lot of sense, because we also know that social media can have a lot of benefits,” she said. “With anything, there is positive and negative. Social media is this great big thing, and there are all sorts of ways to use it.” Beginning in 2017, researchers led by Taylor Heffer from Brock University in St. Catharines, Ontario, surveyed nearly 600 sixth-, seventh- and eighth-graders in Ontario once a year for two… read on >

In states where marijuana is legal, teens smoking pot and then getting behind the wheel of a car is common, a new study finds. “There’s a general public zeitgeist that marijuana is a pretty safe drug,” said study co-author Darin Erickson, an associate professor at the University of Minnesota’s School of Public Health. “In actuality, there hasn’t been a lot of research regarding how marijuana is used, its safety or its harms,” he added in a university news release. For the study, Erickson and his team surveyed 50 local enforcement agencies in Colorado and Washington state in 2016 and 2017 to find out if underage marijuana use (under 21) and marijuana-impaired driving are problems in their cities. In addition, the researchers asked about the types of enforcement used to tackle those problems, and the resources available to do so. All of the agencies said that underage use is somewhat or very common, and most said that marijuana-impaired driving is somewhat or very common. Thirty percent said they conducted enforcement targeting underage use or possession or marijuana, and 20 percent said they conducted underage compliance checks at licensed stores, with a higher rate in Colorado (32 percent) than Washington (8 percent), the findings showed. One local enforcement agency in each state specifically targeted marijuana-impaired driving, according to the study published recently in the International Journal of… read on >