Long-Distance Running Takes Toll on Joints, But It May Be Temporary

MONDAY, Nov. 30, 2015 (HealthDay News) — Runners who run very long distances suffer cartilage damage in their lower joints — but the cartilage can regenerate, a small study suggests.

The researchers also found that the runners had lost about 6 percent of their brain’s gray matter by the end of the race. But eight months later, their gray matter volume had returned to normal.

The study included 44 runners taking part in the 2009 Trans Europe Foot Race, which involved running nearly 4,500 kilometers (about 2,800 miles) over two months without any days of rest.

Using a mobile MRI truck, the researchers scanned the runners every three or four days during the event. Nearly all cartilage in knee, ankle and hind-foot joints showed significant deterioration in the first 900 to 1,550 miles of the race. The findings are to be presented Monday at the annual meeting of the Radiological Society of North America, in Chicago.

“Interestingly, further testing indicated that ankle and foot cartilage have the ability to regenerate under ongoing endurance running,” said Dr. Uwe Schutz. He is a radiologist and specialist in orthopedics and trauma surgery in the department of diagnostic and interventional radiology at the University Hospital of Ulm, in Germany.

“The ability of cartilage to recover in the presence of loading impact has not been previously shown in humans. In general, we found no distance limit in running for the human joint cartilage in the lower extremities,” Schutz said in a society news release.

“The human foot is made for running,” Schutz said.

Research findings presented at meetings are viewed as preliminary until published in a peer-reviewed journal.

More information

The University of California, San Francisco, offers training tips for running a marathon.





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Weight Loss May Spare Knee Cartilage, Study Finds

MONDAY, Nov. 30, 2015 (HealthDay News) — Losing a large amount of weight slows the loss of knee cartilage in obese people, a new study shows.

Obesity is a major risk factor for knee osteoarthritis, a degenerative joint disease that often leads to joint replacement surgery.

The new study included just over 500 overweight and obese Americans who either had mild to moderate osteoarthritis or risk factors for the disease. The study participants were randomly assigned to a control group that lost no weight, a group that lost a little weight, or a group that lost more than 10 percent of their body weight.

Four years of follow-up showed significant weight loss protected against cartilage degeneration and that larger amounts of weight loss provided more protection, according to the study to be presented Monday at the annual meeting of the Radiological Society of North America, in Chicago.

Research presented at meetings is considered preliminary until published in a peer-reviewed journal.

“Cartilage degenerated a lot slower in the group that lost more than 10 percent of their body weight, especially in the weight-bearing regions of the knee,” study author Dr. Alexandra Gersing, from the department of radiology and biomedical imaging at the University of California, San Francisco, said in a society news release.

“However, those with 5 to 10 percent weight loss had almost no difference in cartilage degeneration compared to those who didn’t lose weight,” she added.

Significant weight loss not only slows the loss of knee joint cartilage, it also reduces the risk of osteoarthritis. Along with moderate exercise, weight loss is one of the best ways to prevent the disease, Gersing said.

“It’s most helpful if these lifestyle interventions take place as early as possible,” she said.

More information

The U.S. National Institute of Arthritis and Musculoskeletal and Skin Diseases has more about osteoarthritis.





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Obamacare Boosting Breast Cancer Screening Among Poor: Study

MONDAY, Nov. 30, 2015 (HealthDay News) — More poor women are being screened for breast cancer due to expanded Medicaid coverage under the Affordable Care Act, also known as Obamacare, a new study finds.

States now have the option to expand Medicaid coverage of breast cancer screening to people younger than 65 whose income is up to 133 percent of the federal poverty level. So far, 23 states have opted for that expanded coverage and six others are implementing alternatives, according to the new report.

California, Connecticut, Minnesota, New Jersey, Washington state, and Washington, D.C., were among the first to adopt and implement the expanded coverage, and did so by 2011, the study authors said.

In those states, breast cancer screening rates among low-income women rose 25 percent between 2008 and 2012, the study found. The findings are scheduled to be presented Monday at the annual meeting of the Radiological Society of North America, in Chicago.

“While increased use of screening mammography has significantly contributed to improved detection of breast cancer, substantial disparities in breast cancer screening exist among populations in the country,” study author Dr. Soudabeh Fazeli Dehkordy, of St. John Providence Hospital in Southfield, Mich., said in a society news release.

“Understanding the impact of Medicaid expansion on breast cancer screening rates in early expander states can provide valuable insights that can be very useful to both state and federal policymakers when considering key health policy,” she added.

“Adoption of Medicaid expansion by more states can result in considerable improvement of disparities in breast cancer screening, leading to better health outcomes for all women across the United States,” Fazeli Dehkordy concluded.

Research presented at meetings is viewed as preliminary until published in a peer-reviewed journal.

More information

The U.S. National Cancer Institute has more about breast cancer screening.





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Teens More Cautious About Sex When Parents Set Rules, Study Finds

By Randy Dotinga
HealthDay Reporter

MONDAY, Nov. 30, 2015 (HealthDay News) — A new analysis suggests that parents who set rules and keep tabs on their teenagers may have kids who are more cautious about sex.

“Parents really matter, and they’re influential,” said report co-author Vincent Guilamo-Ramos, co-director of the Center for Latino Adolescent and Family Health at New York University’s Silver School of Social Work.

At issue: How can parents convince their children to engage in less sexual activity, especially risky unprotected intercourse?

The study authors said that statistics suggest that hundreds of thousands of U.S. teens become pregnant each year, and more than 75 percent of the pregnancies are unplanned. Sexually transmitted disease is another risk for teens and young adults: Research shows that in 2012, people aged 20 to 24 had the highest rate of new infections with HIV, the virus that causes AIDS.

In the new report, researchers combined and analyzed the results of 30 studies from around the world. The studies, completed from 1984 to 2014, analyzed the effects of parental activities such as knowing what kids are doing or setting rules for them. The goal of the studies was to see whether the kids of more watchful parents were more likely to skip sexual activity — defined in different ways — or use birth control.

The investigators found that kids whose parents set rules and monitored them — kept an eye on what they were doing and who they were with — had sexual intercourse later in life. Those whose parents monitored them were also more likely to use condoms and other forms of birth control, but making rules didn’t seem to have an effect on that front.

“When kids are sexually active, it’s less about setting clear rules and more about having a better relationship and better communication,” said Guilamo-Ramos.

Due to the designs of the studies, the researchers couldn’t tell if parental monitoring or rule making directly caused kids to be more cautious about sexuality. Other factors could explain the apparent connections in the statistics.

It’s possible, for example, that kids who don’t do risky things communicate more with their parents about their lives, allowing more monitoring, said Atika Khurana, an assistant professor of counseling psychology and human services at the University of Oregon. Still, she said, lots of research suggests that parental monitoring does matter.

While the new report doesn’t show “anything new except that a number of papers show that monitoring works,” the findings do “give parents the green light to parent,” said Dr. Richard Rupp, chief of adolescent and behavioral medicine at University of Texas Medical Branch, in Galveston.

In general, he said, research shows that parents can do three effective things to delay sexual activity in teens: They can model good behavior in their own actions, communicate with their kids, and keep an eye on them.

“Very similar results have been found for other adolescent risk behaviors,” Rupp said.

“Perhaps the clearest is for driving, probably because it is a rather simple behavior,” he said. “Parents communicate to their kids to be safe and the family rules for driving, and the consequences of unsafe driving. Parents then monitor and control the keys.”

But how do these kinds of parental strategies actually affect what kids do?

Khurana said that one theory is that awareness and rules are “an indicator of positive and supportive family climate that protects teens from negative outcomes. Also, parents who solicit information from their teens about their friends or whereabouts send an implicit message to their teens that they care about them and their well-being.”

However, research has also shown that firm parenting can backfire when kids see it as too controlling, Khurana said. In these cases, kids may rebel. “Parents have to be mindful of their child’s growing autonomy needs,” she said.

Guilamo-Ramos said it’s important to avoid being unfair and harsh. “When it starts to get problematic is when it’s controlling and doesn’t reflect that young people have to weigh in and provide their perspective,” he said.

The study was published online Nov. 30 and will appear in the December print issue of the journal Pediatrics.

More information

Planned Parenthood has more about talking to your teenager about sex.





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Dogs May Ease a Child’s Fears

SUNDAY, Nov. 29, 2015 (HealthDay News) — The companionship of a dog may lower a child’s anxiety levels, a new study suggests.

The researchers looked at almost 650 children aged 18 months and older who were screened for anxiety. Of those children, 58 percent had a dog at home.

Only 12 percent of children with dogs tested positive for anxiety, compared with 21 percent of those without dogs, the researchers at Bassett Medical Center in Cooperstown, N.Y., found.

The study was published recently in the journal Preventing Chronic Disease.

Having a dog may reduce a child’s anxiety — particularly social and separation anxieties — in a number of ways, such as by triggering conversations and helping break the ice with new people, the researchers suggested. However, the study did not prove a cause-and-effect link between dogs and lower anxiety levels in children.

“Interacting with a friendly dog also reduces cortisol levels, most likely through oxytocin release, which lessens physiologic responses to stress,” the researchers wrote. “These hormonal effects may underlie the observed emotional and behavioral benefits of animal-assisted therapy and pet dogs.”

More information

Children’s Mental Health Ontario has more about anxiety.





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Could Your ‘Holiday Blues’ Be Seasonal Affective Disorder?

SUNDAY, Nov. 29, 2015 (HealthDay News) — Some people who think they have the holiday blues may actually have seasonal affective disorder (SAD), an expert suggests.

“SAD usually occurs in those who already are diagnosed or afflicted with a type of depression. It occurs with the change of the seasons, beginning in the fall and staying with you throughout the cold, dark winter months,” Dr. Jason Hershberger, chair of psychiatry at Brookdale Hospital and Medical Center in New York City, said in a hospital news release.

“Your energy drops and your mood will swing. Many shrug off the depressed feeling as the winter doldrums, denying that they may be suffering from mild to severe seasonal depression,” he explained.

Lack of sunlight is the main cause of SAD, but age, sex, where you live, and your family history also affect risk, researchers have found.

“If you are a young woman living far from the equator with a family history of SAD or a previous diagnosis of clinical depression or bipolar disorder, you are most at risk,” Hershberger said in the news release. “Women are found to have more severe symptoms, while young people are often at higher risk than older adults,” he added.

“Living far from the equator means there is less sunlight, especially during the winter. Any family or personal history of depression, bipolar disorder or SAD makes the disorder hereditary,” Hershberger explained.

If you think you have SAD, seek medical help or talk to a family member or friend, especially if you have any thoughts of suicide, he advised.

“Before you see your doctor, make a list of your symptoms; recent life changes like divorce, work or school; medications and supplements — including vitamins; notes on when your depression started or became worse; and a list of questions you have for your doctor,” Hershberger suggested.

People suspected of having SAD will undergo a physical and mental examination, followed by blood tests to check for any other possible causes of symptoms, he said.

Doctors will usually recommend phototherapy, which is “a form of light therapy to help your brain produce the chemicals, like serotonin, you need to feel healthier and happier,” Hershberger said. Light boxes are widely available for less than $100 to about $300.

Antidepressant medication may also be prescribed along with so-called “talk therapy” to help you identify negative thoughts, and learn how to cope with your stress and anxiety, he added.

More information

The American Academy of Family Physicians has more about SAD.





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Why You Need Flexibility Exercises

SATURDAY, Nov. 28, 2015 (HealthDay News) — Flexibility exercises should be part of your regular workouts, an expert says.

Effective fitness programs should include cardiovascular training, strength building and flexibility exercises, but the flexibility component is often overlooked, according to the American Academy of Orthopaedic Surgeons.

“Increasing your flexibility improves your ability to move easily,” orthopedic surgeon Dr. Raymond Rocco Monto, of Nantucket, Mass., said in an academy news release.

“Some joints lose up to 50 percent of motion as we age. There are many ways to improve your joint flexibility, including controlled stretches held for 10-30 seconds, stretches that rely on reflexes to produce deeper flexibility, as well as yoga and pilates,” explained Monto.

Including flexibility exercises in your workouts helps reduce back and joint pain, increases circulation, improves joint motion, boosts athletic performance and improves muscle health, he added.

To get the most out of flexibility training, always warm up before you stretch, Monto said. Stretching cold muscles can lead to injuries.

He advises stretching slowly and gently, and breathing into your stretch to avoid muscle tension. Relax and hold each stretch for 10 to 30 seconds.

Don’t bounce while stretching because doing so can cause injuries. Also, stretching should not hurt, Monto said. If you feel pain, go easier on the stretch, breathe deeply and relax into it.

More information

The Women’s Heart Foundation offers more stretching tips.





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Celery-Onion Blend Is Cause of E.Coli Outbreak Tied to Costco Chicken Salad: CDC

FRIDAY, Nov. 27, 2015 (HealthDay News) — A celery-onion blend included in a rotisserie chicken salad from Costco stores is the probable culprit behind an ongoing E.coli outbreak and has been recalled, the U.S. Centers for Disease Control and Prevention said Friday.

According to a CDC news release, the Montana Public Health Laboratory tested the diced celery-onion blend and found results that “indicated the presence of E. coli O157:H7.”

As a result, “Taylor Farms Pacific, Inc., voluntarily recalled multiple products containing celery,” the agency said.

The E. coli outbreak that has so far sickened 19 people in seven states has been linked to rotisserie chicken salad made and sold at Costco stores.

Most of the illnesses have occurred in the western United States. Affected states are California, Colorado, Missouri, Montana, Utah, Washington and Virginia.

Five patients have been hospitalized and two have developed kidney failure, the CDC said. No deaths have been reported.

An investigation found that many of the patients bought or ate rotisserie chicken salad from Costco.

On Nov. 20, Costco said it had removed all remaining rotisserie chicken salad from its U.S. stores and stopped making the product until further notice.

The product is labeled “Chicken Salad made with Rotisserie Chicken” and has the item number 37719 on the label.

People who bought the chicken salad at any Costco store nationwide on or before Nov. 20 should throw it away, even if some of it has been eaten and no one has become ill, the CDC said.

The investigation is continuing and the CDC, along with state and local public health officials, are trying to identify other cases of illness associated with the chicken salad.

E. coli illness usually appears within an average of three or four days after swallowing the germ, according to the CDC. Illness can be severe and include diarrhea, often bloody, and abdominal cramps. Most people will recover within a week, but in some the illness can progress to kidney failure. Children under the age of 5, older adults and people with weakened immune systems are at highest risk from E. coli illness.

More information

There’s more on E. coli at FoodSafety.gov.





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Assessing Health Issues of Child Refugees

FRIDAY, Nov. 27, 2015 (HealthDay News) — The main health problems of refugee children from Asia and Africa when they arrive in the United States are outlined in a new study.

Based on screenings of more than 8,100 young refugees between 2006 and 2012, the top health concerns were hepatitis B, tuberculosis, parasitic worms, high blood lead levels and anemia, the study found.

The refugees, all younger than 19, were from Bhutan, Myanmar, the Democratic Republic of the Congo, Ethiopia, Iraq and Somalia. The screenings were conducted shortly after they arrived in Colorado, Minnesota, Pennsylvania and Washington state.

In general, these conditions were more common among children from the Democratic Republic of the Congo, Ethiopia and Somalia, and lower among those from Iraq, researchers said.

Among refugees from Myanmar, those who came to the United States from Thailand had more diseases than those who came by way of Malaysia, the researchers found.

“Understanding the health profiles of children from different countries allows us to provide better counseling for parents, prioritize specific tests and ensure that we give children a healthy start here in the U.S.,” study lead author Dr. Katherine Yun, a pediatrician in the Children’s Hospital of Philadelphia’s PolicyLab and Refugee Health Program, said in a hospital news release.

The findings may have a number of implications.

“Our data suggest that the existing [U.S. Centers for Disease Control and Prevention] medical screening guidelines remain relevant and hold great value,” Yun said.

“We also recommend that multistate public health collaborations monitor the health of newly arrived refugee children, along with resources available to them,” she added.

Health officials should analyze these data in a timely manner, because refugee populations change significantly over time, she said.

Also, it may be more cost-effective to conduct health screenings of refugees before they leave their countries, Yun said.

The study was published Nov. 12 in the American Journal of Public Health.

More information

The U.S. Centers for Disease Control and Prevention has more about immigrant and refugee health.





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Bullies May Face Higher Odds of Eating Disorders: Study

FRIDAY, Nov. 27, 2015 (HealthDay News) — Bullies may be at increased risk for eating disorders, a new study suggests.

Previous research has found that victims of bullying are more likely to have these disorders, but the finding that bullies are also at risk came as a surprise, the researchers said.

“For a long time, there’s been this story about bullies that they’re a little more hale and hearty,” study author William Copeland, an associate professor of psychiatry and behavioral sciences at Duke University School of Medicine in Durham, N.C., said in a university news release.

“Maybe they’re good at manipulating social situations or getting out of trouble, but in this one area it seems that’s not the case at all. Maybe teasing others may sensitize them to their own body image issues, or afterward, they have regret for their actions that results in these symptoms like binge eating followed by purging or excess exercise,” Copeland said.

He and his colleagues looked at 1,420 children, aged 9 to 16. Compared to those who weren’t bullied, victims of bullying were nearly twice as likely to have anorexia (11 percent vs. 6 percent) and bulimia (28 percent vs. 18 percent).

But, the researchers also found that bullies were much more likely to have bulimia than those who weren’t bullies or victims of bullying, 31 percent vs. 18 percent.

Compared to those not involved in bullying, children who were both bullies and victims of bullying were more likely to have anorexia (23 percent vs. 6 percent) and binge eating/vomiting (5 percent vs. less than 1 percent), the study revealed.

The study appears in the December issue of the International Journal of Eating Disorders.

“Sadly, humans do tend to be most critical about features in other people that they dislike most in themselves,” study co-author Cynthia Bulik, a professor of eating disorders at the University of North Carolina at Chapel Hill, said in the news release.

“The bullies’ own body dissatisfaction could fuel their taunting of others. Our findings tell us to raise our vigilance for eating disorders in anyone involved in bullying exchanges — regardless of whether they are the aggressor, the victim or both,” she said.

More information

The U.S. National Institute of Child Health and Human Development has more about bullying.





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Buckle Up in the Backseat, Experts Advise

FRIDAY, Nov. 27, 2015 (HealthDay News) — As you head home from Thanksgiving get-togethers, stay safe by buckling up, even when you’re riding in the backseat.

Hundreds of Americans die in car crashes every year because they don’t use seat belts while riding in the rear seats of vehicles, a new report shows.

In 2013, there were almost 900 deaths among people aged 8 and older who didn’t use seat belts while riding in rear seats. More than 400 of those people might still be alive if they had buckled up, according to the Governors Highway Safety Association (GHSA).

Rear seat passengers who don’t use seat belts are three times more likely to die in a crash. Still, 32 states don’t have strong seat belt laws for backseat passengers, the report noted.

Only 78 percent of adult rear seat passengers use seat belts, compared with 87 percent for the front seat. In fatal traffic crashes, rates of seat belt use are 60 percent in the rear and 74 percent in the front, the report said.

The GHSA wants to highlight the need for rear seat passengers to wear their seat belts as nearly 42 million Americans drive at least 50 miles from home during the Thanksgiving holiday. During that time, there will be more than 400 traffic deaths, the report noted.

“Families traveling together at the holidays often means adults sitting in rear seats, where they may not be accustomed to buckling up in the same way they are when the get in the driver’s seat. It’s important to remind folks that seat belts are there to protect them — in both the front and back seats,” report author James Hedlund, from Highway Safety North, said in a GHSA news release.

He is a former senior official with the National Highway Traffic Safety Administration (NHTSA).

“Too many adults mistakenly believe that they are somehow magically protected in the back seat when they get into a for-hire vehicle,” GHSA Executive Director Jonathan Adkins said in the news release.

“Convincing adults to buckle up, every trip, in every seat, will require a concerted effort among lawmakers and highway safety professionals, but the lives saved will be well worth it,” he added.

Rear seat belt use is 83 percent in states with laws requiring their use and 74 percent in states without such laws, according to the GHSA.

More information

The U.S. Centers for Disease Control and Prevention has more about adult seat belt use.





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