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Cancer, Parenting, Pediatrics, Public Health, Research

Study shows number of American teens using sunscreen is declining

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Despite an increase in cases of melanoma, the most dangerous type of skin cancer, growing percentage of high school students get a failing grade when it comes to using sunscreen. HealthDay reports:

The number of U.S. teens using sunscreen dropped nearly 12 percent in the last decade, a new report shows.

During that same time period, the number of teens using indoor tanning beds barely decreased. Both indoor tanning and failure to use sunscreen increase the risk of skin cancers, including deadly melanomas, the researchers noted.

“Unfortunately, we found a decrease in the overall percentage of teens who reported wearing sunscreen, from 67.7 percent in 2001 to 56.1 percent in 2011,” said lead researcher Corey Basch, an associate professor in the department of public health at William Paterson University in Wayne, N.J.

“Using sun-protective behaviors like applying sunscreen and avoiding intentional exposure to tanning devices will be key [to lowering cancer risk],” she added.

Use of indoor tanning devices by white girls decreased only slightly, from 37 percent in 2009 to 29 percent in 2011, she said.

Study authors say more research is need to understand why teens aren’t following national guidelines regarding sun protection.

Previously: Melanoma rates exceed rates of lung cancer in some areas, Beat the heat – and protect your skin from the sun, Working to protect athletes from sun dangers and Stanford study: Young men more likely to succumb to melanoma
Photo by Alex Liivet

From August 11-25, Scope will be on a limited publishing schedule. During that time, you may also notice a delay in comment moderation. We’ll return to our regular schedule on August 25.

Obesity, Parenting, Pediatrics, Research, Sleep

Study shows poor sleep habits as a teenager can “stack the deck against you for obesity later in life”

Study shows poor sleep habits as a teenager can "stack the deck against you for obesity later in life"

11386276_c148dfd9bd_zNew research examining the effect of sleeplessness on weight gain in teenagers over time offers strong evidence that inadequate sleep may increase the risk of obesity.

In the study, researchers at Columbia University and the University of North Carolina pored over health information from the the National Longitudinal Study of Adolescent Health on more than 10,000 Americans ages 16 and 21. In addition, details about individuals’ height, weight and sleep habits were collected during home visits in 1995 and 2001.  According to a release, results showed:

Nearly one-fifth of the 16-year-olds reported getting less than six hours of sleep. This group was 20 percent more likely to be obese by age 21, compared to their peers who got more than eight hours of sleep. While lack of physical activity and time spent watching television contributed to obesity, they did not account for the relationship between sleeplessness and obesity.

“Lack of sleep in your teenage years can stack the deck against you for obesity later in life,” says [Columbia researcher Shakira Suglia, ScD]. “Once you’re an obese adult, it is much harder to lose weight and keep it off. And the longer you are obese, the greater your risk for health problems like heart disease, diabetes, and cancer.”

“The message for parents is to make sure their teenagers get more than eight hours a night,” adds Suglia. “A good night’s sleep does more than help them stay alert in school. It helps them grow into healthy adults.”

Previously: Want teens to eat healthy? Make sure they get a good night’s sleepProlonged fatigue and mood disorders among teensMore evidence linking sleep deprivation and obesityStudy shows link between lack of sleep and obesity in teen boys and Study shows lack of sleep during adolescence may have “lasting consequences” on the brain
Photo by Adrian Sampson

From August 11-25, Scope will be on a limited publishing schedule. During that time, you may also notice a delay in comment moderation. We’ll return to our regular schedule on August 25.

Neuroscience, Parenting, Pediatrics

Can musical training help close the achievement gap between high and low-income children?

Can musical training help close the achievement gap between high and low-income children?

scope Music and kids

Drawing data from hundreds of students from low-income urban communities, a recent study offers new insights into understanding the academic gap between children from varying socioeconomic backgrounds and demonstrates the impact of musical training in helping low-income youth improve their language and reading comprehension skills.

The research (.pdf) was presented at the American Psychological Association’s annual convention and involved elementary and high school-aged students who participated in two separate projects measuring neural responses along with language and cognitive evaluations over a two-year period. Younger participants were part of Los Angeles-based nonprofit Harmony Project and older subjects attended three public high schools in Chicago. As explained in a press release:

[Researchers] studied children beginning when they were in first and second grade. Half participated in musical training and the other half were randomly selected from the program’s lengthy waiting list and received no musical training during the first year of the study. Children who had no musical training had diminished reading scores while Harmony Project participants’ reading scores remained unchanged over the same time span.

Over two years, half of the [Chicago] students participated in either band or choir during each school day while the other half were enrolled in Junior Reserve Officer’s Training Corps classes, which teaches character education, achievement, wellness, leadership and diversity. All participants had comparable reading ability and IQs at the start of the study. The researchers recorded the children’s brain waves as they listened to a repeated syllable against soft background sound, which made it harder for the brain to process. The researchers repeated measures after one year and again at the two-year mark. They found music students’ neural responses had strengthened while the JROTC students’ responses had remained the same. Interestingly, the differences in the music students’ brain waves in response to sounds as described above occurred after two years but not at one year, which showed that these programs cannot be used as quick fixes, [Northwestern neurobiologist Nina Kraus, PhD] said. This is the strongest evidence to date that public school music education in lower-income students can lead to better sound processing in the brain when compared to other types of enrichment education, she added.

“Research has shown that there are differences in the brains of children raised in impoverished environments that affect their ability to learn,” Kraus further explained in the release. “While more affluent students do better in school than children from lower income backgrounds, we are finding that musical training can alter the nervous system to create a better learner and help offset this academic gap.”

Jen Baxter is a freelance writer and photographer. After spending eight years working for Kaiser Permanente Health plan she took a self-imposed sabbatical to travel around South East Asia and become a blogger. She enjoys writing about nutrition, meditation, and mental health, and finding personal stories that inspire people to take responsibility for their own well-being. Her website and blog can be found at www.jenbaxter.com.

Previously: Pump up the bass, not the volume, to feel more powerful, Denver rappers’ music motivates kids (of all ages) to eat better and Brains of different people listening to the same piece of music actually respond in the same way.
Photo By: CherryPoint

From August 11-25, Scope will be on a limited publishing schedule. During that time, you may also notice a delay in comment moderation. We’ll return to our regular schedule on August 25.

Neuroscience, Parenting, Pediatrics, Research

Can’t remember being a baby? Rapid growth of new neurons in young brains may explain why

Can't remember being a baby? Rapid growth of new neurons in young brains may explain why

baby_073014A close friend once told me that one of her favorite aspects about being a parent is that she could experience what it was like to be a baby and toddler. “As adults, we have no recollection of what it was like to be that young,” she said. “Watching my son grow up offers me a window into that part of my life.”

The inability to remember memories in early childhood is known as “infantile amnesia”. Few adults can remember events in their lifetime that occurred before the age of three. A past study shows that these memories tend to fade away around the age of seven.

But why can’t we remember our days as a crawling, toddling, babbling youngster? Recent research suggests the answer many have to do with how quickly the brain develops during this stage in our lives. According to a Scientific American article published earlier this week:

In a new experiment, the scientists manipulated the rate at which hippocampal neurons grew in young and adult mice. The hippocampus is the region in the brain that records autobiographical events. The young mice with slowed neuron growth had better long-term memory. Conversely, the older mice with increased rates of neuron formation had memory loss.

Based on these results, published in May in the journal Science, [neuroscientists Paul Frankland, PhD, and Sheena Josselyn, PhD] think that rapid neuron growth during early childhood disrupts the brain circuitry that stores old memories, making them inaccessible. Young children also have an underdeveloped prefrontal cortex, another region of the brain that encodes memories, so infantile amnesia may be a combination of these two factors.

Previously: Study finds age at which early-childhood memories fade and Individuals’ extraordinary talent to never forget could offer insights into memory
Photo by D Sharon Pruitt

Parenting, Pediatrics, Pregnancy

Losing Jules: Breaking the silence around stillbirth

My birthday is coming, and I’m dreading it. I can’t celebrate; I’d like to go to bed and wake up twenty-four hours later. It’s not because I’m a year older. It’s because it’s the anniversary of the death of my second child, Jules.

My experience is nothing unique. Death anniversaries haunt most people: the anniversary of the death of a parent; the anniversary of a friend’s suicide, the day a father or husband died in battle. My nightmare began on the morning of my birthday, three years ago. I was beginning my 38th week of pregnancy, and I felt great. All signs pointed to a normal, healthy baby. I woke up early the morning of July 30 and my water broke. With great excitement, I grabbed my overnight bag and headed to the hospital with my husband and my (then) 4 1/2 year old son, Miles.

Although I’m not religious, I baptized Jules with my tears and told him how much I loved him. Then I did the hardest thing I’ve ever had to do in my life: I put him down, and I left.

We checked into the obstetric intake bay, and the nurse began to hook me up to a fetal monitor. She couldn’t get it to work and remarked that it must be malfunctioning. She brought in another monitor, and she couldn’t pick up the baby’s heartbeat on that one either. Then she brought in an MD with an ultrasound. I looked at the image of my beautiful son on the screen. There was no pulsing heart in his rib cage. He was dead.

I went into the kind of shock that people describe as “a bad movie.” Everything slowed down and became tunnel-like. I felt removed from the situation, almost observing the scene from a distance as the staff wheeled me to a room at the end of the maternity ward to deliver my stillborn child. I remember the rose a nurse placed on the outside of the door to mark that this room was different. She closed the door when the sounds of newborns drifted down the hall to my room. She was extremely compassionate and held me through some of my labor pains. I asked for Pitocin to speed the birth, and Jules was born quickly. His death was ruled a cord accident.

Jules was so beautiful, so perfect and so still that at first I was afraid to hold him. The staff wrapped him in a hospital blanket and put him in the baby gurney. A pediatrician came to give him a newborn exam with a mix of horror and grief on his face. Cautiously, I picked Jules up and held him and rocked him for a very long time. I desperately didn’t want to leave him there, and I desperately wanted to hold my living son, Miles, who was at a friend’s house. Although I’m not religious, I baptized Jules with my tears and told him how much I loved him. Then I did the hardest thing I’ve ever had to do in my life: I put him down, and I left.

My husband and I went through a special kind of hell in the weeks and months that followed. My milk came in, and I had to bind my swollen breasts and ice them for days. I couldn’t sleep, and when I did, I had nightmares. Worst of all, we had to explain to our son Miles that baby Jules was not coming home from the hospital. Sweet Miles began our healing when he thought about this for a few moments, and said, “So, Jules is now a twinkle in Papa’s eye.”

The community wrapped its arms around our family. Our house filled with flowers, and we had more food than we knew what to do with. What surprised me the most was how many women reached out to me to share their own stories of stillbirth. In the first 24 hours after we got home, our neighbors came over to talk to us about their baby dying in-utero near term. Over the course of the next few months, I spoke to many women who had lost babies, mainly by stillbirth, but not exclusively. I had no idea that in this age of medical advancement 1 in every 167 babies in the United States is stillborn (.pdf). Just over half a percent (.6 percent) doesn’t sound like a lot – until it’s you. Statistically, this has probably happened to someone you know, but they probably don’t talk about it. I know of three people – either in my circle or once removed – who have had stillbirths since mine.

I describe the initial weeks after Jules’ death in military terms: It felt like our family took a direct hit. Over time, I became skilled in answering people when they asked, “So, how’s your baby?” Those questions lasted for a year and a half. I sought counseling with health professionals who had experienced stillbirth or infant death. I’m not Jewish, but I went to talk to a Rabbi. She helped me to understand a beautiful philosophy: that we owe it to the dead to try and live well and fully. I’m still here, and I shouldn’t squander my time. It’s not always easy, especially when someone asks, “So, you have just the one?” But I work hard to live well and fully every day, especially on the anniversary of what would have been a joint birthday for Jules and me.

Polly Stryker works as a producer and editor at KQED Radio, an NPR affiliate in San Francisco, where she lives with her family. She is writing a book called “Losing Jules” for her son, Miles.

Previously: A call to “break the silence of stillbirth”
Image of Jules’ footprints in featured entry box courtesy of Polly Stryker

Humor, Parenting, Science

A humorous look at how a background in science can help with parenting

A humorous look at how a background in science can help with parenting

Scientist-moms out there might enjoy this playful (tongue-in-cheek) Huffington Post essay on how having a science degree made the writer a better parent. I had to chuckle at Sarah Gilbert’s list of how she’s found uses for the sciences in her day-to-day life:

Physics: Knowing that my house will return to complete disorder immediately after I clean it, because entropy.

Biology: Knowing everything my baby ate by the contents of her diaper, because scat identification.

Neuro-psychology: Knowing that my toddler freaking out over sandwich crusts is just a phase, because frontal lobe development.

Statistics: Knowing that the chance of having a baby brother is 50/50 no matter what my mother-in-law thinks, because mutually exclusive events.

Astronomy: Knowing that the woman judging me by my yogurt-spattered shirt isn’t the only thing in the universe, because cosmology.

Parenting, Sleep, Women's Health

What other cultures can teach us about managing postpartum sleep deprivation

What other cultures can teach us about managing postpartum sleep deprivation

New_mom_072114Prior to becoming a mom, I felt fully confident that caring for a newborn would be less demanding than, or at least equal to, the physically grueling trainings from my college soccer days or my sleepless year of graduate school. But I soon learned that both of these experiences paled in comparison to the exhaustion I encountered after the arrival of my 8-pound-plus bundle of joy. So I was interested to read a recent Huffington Post blog entry from the Stanford Center for Sleep Sciences and Medicine examining how mothers in other countries cope with postpartum sleep deprivation.

In the entry, Mara Cvejic, MD, a neurologist at the University of Florida and former sleep medicine fellow at Stanford, notes that although sleep deprivation can profoundly affect cognitive function and mood, the brain of a postpartum mom is actually growing. She writes:

… despite all the formidable evidence of sleep deprivation in the everyday person, the scientific evidence of what happens to the postpartum brain is positively astounding — it thrives. A study published by the National Institutes of Health in 2010 actually shows that a mother’s brain grows from just 2-4 weeks to 3-4 months post delivery without any significant learning activities. The gray matter of the parietal lobe, pre-frontal cortex, hypothalamus, substantia nigra, and amygdala all form new connections and enlarge to a small degree. The imaging study confirms what animal studies have shown in the past — that these brain regions responsible for complex emotional judgment and decision-making actually bulk up with use. Rationale to the study shows that mothers who have positive interactions with their offspring — soothing, nurturing, feeding, and caring for them — are performing a mental exercise of sorts. Their learned coping skills in the face of novel child-rearing actually muscularize their brain.

She goes on to outline how new moms from Bulgaria to Sweden, and everywhere in between, turn to “hammocks, spa treatments, hired help, warm foods, arctic cradles, and cardboard” to cope with a lack of sleep. Personally, I’m in favor of Americans adopting this Malaysian tradition:

Food and warmth are also a focus of the Malaysian confinement of pantang. Steeped in the belief that the women’s life force is her fertile womb, she undergoes a 44-day period of internment to focus on relaxation, hot stone massage, lulur (full body exfoliation), herbal baths, and hot compresses. Typically a bidan, what can only be described as a live-in midwife and nanny combined, is hired to attend on the new mother. This is sometimes a family member, such as her mother or mother-in-law.

Previously: The high price of interrupted sleep on your health, What are the consequences of sleep deprivation? and Study: Parents may not be as sleep-deprived as they think
Photo by sean dreilinger

Ethics, Genetics, Medicine and Society, Parenting, Pediatrics, Stanford News

Genome testing for children: What parents should consider

Genome testing for children: What parents should consider

Genome testing: Would you do it?

Okay, next question: Would you have your child’s whole genome tested?

In the recent issue of Stanford Medicine News, Louanne Hudgins, MD, chief of medical genetics and director of perinatal genetics at Lucile Packard Children’s Hospital Stanford, weighs in on the issue: “I strongly advise parents against whole-genome testing for their children unless performed in the context of a medical evaluation following formal counseling regarding its utility, limitations and possible unrelated findings,” she said.

In the piece, Hudgins comments on privacy and ethics considerations, and explains why what we partially know (for instance, if your child is found to have a gene predisposing him or her to a disease) can sometimes provide more cause for worry or false hope than helpful or conclusive information.

The whole piece (a short one) is worth a read.

Previously: Stanford patient on having her genome sequenced: “This is the right thing to do for our family”, Personal molecular profiling detects diseases earlier, Stanford geneticist discusses genomics and medicine in TEDMED talk and Medical practice, patents, and “custom children”: A look at the future of reproductive medicine

Health and Fitness, Nutrition, Obesity, Parenting, Pediatrics, Stanford News

Childhood obesity expert to parents: Reduce your child’s screen time

Childhood obesity expert to parents: Reduce your child's screen time

screen-tvTake a few minutes to read a brief and informative piece about the negative health effects of too much screen time for children and how you can set boundaries for your kids – or perhaps yourself. In a Stanford Medicine News Q&A, pediatrician Thomas Robinson, MD, MPH, director of the Center for Healthy Weight at Lucile Packard Children’s Hospital Stanford, explains how watching TV or playing video games contributes to inactivity, overeating and obesity. Robinson also speaks to the modern-day concern of restricting access to screen devices that can also be educational tools, such as the iPad.

From the Q&A:

What’s the relationship between excessive screen time and childhood obesity?

It’s a true cause-and-effect relationship. The more time kids spend with screens, the less time they are spending being active. The best evidence supports two primary mechanisms—that kids eat more while watching screens and that exposure to food advertising leads to an increased eating of high-sugar, high-fat and calorie-dense foods. Lots of research shows that kids—and adults—eat more when distracted by a screen. So one of the most important things a family can do is eliminate eating while watching TV and other screens.

Previously:  Talking to kids about junk food ads, This is your 4-year-old on cartoons, Study: Too much TV, computer could hurt kids’ mental health, Does TV watching, or prolonged sitting, contribute to child obesity rates? and Paper explores effects of electronic media on kids’ health

Parenting, Public Health, Research, Sleep

The high price of interrupted sleep on your health

The high price of interrupted sleep on your health

dad_baby_nap_time

As the mother of a 10-month-old, I’m constantly answering the question: Is your son sleeping through the night? And, much to my dismay, I have to repeatedly answer, “No.” So I was interested, and considerably alarmed, to read about new findings showing that interrupted sleep could be as harmful to your physical health as a lack of sleep.

A Time article published today describes the study and the Tel Aviv University researchers’ results:

Students slept a full eight-hours one night followed by a night of interrupted sleep in which they received four phone calls directing them to complete a brief computer exercise before returning to bed. The morning after both nights, the volunteers completed tasks to measure their attention span and emotional state — results proved that just one night of interrupted sleep had negative effects on mood, attention span and cognitive ability.

[Lead researcher Avi Sadeh, PhD,] believes that several nights of fragmented sleep could have long-term negative consequences equivalent to missing out on slumber altogether. “We know that these effects accumulate and therefore the functional price new parents — who awaken three to ten times a night for months on end — pay for common infant sleep disturbance is enormous,” he said in a statement.

In addition to parents with young children, the findings are applicable to people in certain age groups that experience fragmented sleep, as well those with jobs where frequent night wakings are common.

Previously: Stanford expert: Students shouldn’t sacrifice sleep, What are the consequences of sleep deprivation? and Study: Parents may not be as sleep-deprived as they think
Photo by Christina Spicuzza

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