Breaking News
January 19, 2019 - 4.6 percent of Massachusetts residents have opioid use disorder
January 19, 2019 - New study suggests vital exhaustion as risk factor for dementia
January 19, 2019 - New antibiotic discovery heralds breakthrough in the fight against drug-resistant bacteria
January 19, 2019 - Ural Federal University scientists synthesize a group of multi-purpose fluorophores
January 19, 2019 - Researchers identify new therapeutic target in the fight against chronic liver diseases
January 19, 2019 - Preparation, characterization of Soyasapogenol B loaded onto functionalized MWCNTs
January 19, 2019 - FDA Approves Ontruzant (trastuzumab-dttb), a Biosimilar to Herceptin
January 19, 2019 - Tobacco use linked with higher use of opioids and sedatives
January 19, 2019 - Study delves deeper into developmental dyslexia
January 19, 2019 - Anti-vaccination movement one of the top health threats in 2019 says WHO
January 19, 2019 - Newly developed risk score more effective at identifying type 1 diabetes
January 19, 2019 - Highly effective protocol to prepare cannabis samples for THC/CBD analysis
January 19, 2019 - Prinston Pharmaceutical Inc. Issues Voluntary Nationwide Recall of Irbesartan and Irbesartan HCTZ Tablets Due to Detection of a Trace Amount of Unexpected Impurity, N-Nitrosodiethylamine (NDEA) in the Products
January 19, 2019 - How does solid stress from brain tumors cause neuronal loss, neurologic dysfunction?
January 19, 2019 - $14.7 million partnership to supercharge vaccine development
January 19, 2019 - Ian Fotheringham receives Charles Tennant Memorial Lecture award
January 19, 2019 - Brain vital signs detect neurophysiological impairments in players with concussions
January 19, 2019 - Lack of job and poor housing conditions increased likelihood of people attending A&E
January 19, 2019 - Novel targeted drug delivery system improves conventional cancer treatments
January 19, 2019 - Rutgers study finds gene responsible for spread of prostate cancer
January 19, 2019 - Complications Higher Than Expected for Invasive Lung Tests
January 19, 2019 - 3-D printed implant promotes nerve cell growth to treat spinal cord injury
January 19, 2019 - Automated texts lead to improved outcomes after total knee or hip replacement surgery
January 19, 2019 - Poor cardiorespiratory fitness could increase risk of future heart attack, finds new study
January 19, 2019 - Drinking soft drinks while exercising in hot weather may increase risk of kidney disease
January 19, 2019 - Formlabs 3D prints anatomical models
January 19, 2019 - Heart-Healthy Living Also Wards Off Type 2 Diabetes
January 19, 2019 - Teaching Kids to Be Smart About Social Media (for Parents)
January 19, 2019 - Metabolite produced by gut microbiota from pomegranates reduces inflammatory bowel disease
January 19, 2019 - Researchers examine how spray from showers and toilets expose us to disease causing bacteria
January 19, 2019 - Behavioral experiments confirm that additional neurons improve brain function
January 19, 2019 - New study compares performance of real-time infectious disease forecasting models
January 19, 2019 - Obesity can be risk factor for developing renal cell carcinoma, confirms study
January 19, 2019 - New regulation designs on cigarette packs direct smokers’ attention to health warnings
January 19, 2019 - QIAGEN receives first companion diagnostic approval in Japan
January 19, 2019 - Study explores role of Dunning-Kruger effect in anti-vaccine attitudes
January 19, 2019 - Newly identified subset of immune cells may be key to fighting chronic inflammation
January 19, 2019 - New immune response regulators discovered
January 18, 2019 - Poor blood oxygenation during sleep predicts chance of heart-related death
January 18, 2019 - First international consensus on the diagnosis and management of fibromuscular dysplasia
January 18, 2019 - Rapid resistance gene sequencing technology can hasten identification of antibiotic-resistant bacteria
January 18, 2019 - Researchers develop artificial enzymatic pathway for synthesizing isoprenoids in E. coli
January 18, 2019 - Scientists advise caution in immunotherapy research
January 18, 2019 - How children across the world develop language
January 18, 2019 - Columbia Medical Student Receives McDonogh Scholarship
January 18, 2019 - Secretive ‘Rebate Trap’ Keeps Generic Drugs For Diabetes And Other Ills Out Of Reach
January 18, 2019 - Plant based diet could be the best option for the planet says commission
January 18, 2019 - New conservation practice could reduce nitrogen from agricultural drainage, study shows
January 18, 2019 - UIC researchers receive $1.7 million NCI grant to study Southeast Asian fruit
January 18, 2019 - New study determines the fate of DNA derived from genetically modified food
January 18, 2019 - Scientists develop new gene therapy that prevents axon destruction in mice
January 18, 2019 - Study finds critically low HPV vaccination rates among younger adolescents in the U.S.
January 18, 2019 - Brain cells involved in memory play key role in reducing future eating behavior
January 18, 2019 - Risk for Conversion of MS Varies With Different Therapies
January 18, 2019 - Investigational cream may help patients with inflammatory skin disease
January 18, 2019 - Medical school news office receives six writing awards | News Center
January 18, 2019 - County By County, Researchers Link Opioid Deaths To Drugmakers’ Marketing
January 18, 2019 - Research reveals risk for developing more than one mental health disorder
January 18, 2019 - Scientists discover a dramatic pattern of bone growth in female mice
January 18, 2019 - Study finds link between lengthy periods of undisturbed maternal sleep and stillbirths
January 18, 2019 - New nuclear medicine method could improve detection of primary and metastatic melanoma
January 18, 2019 - Combination therapy shows high efficacy in treating people with leishmaniasis and HIV
January 18, 2019 - Health Tip: Don’t Ignore Changes in Skin Color
January 18, 2019 - Dietary Recommendations for Healthy Children
January 18, 2019 - Eliminating the latent reservoir of HIV
January 18, 2019 - Pain From The Government Shutdown Spreads. This Time It’s Food Stamps
January 18, 2019 - Newly discovered regulatory mechanism helps control fat metabolism
January 18, 2019 - New rapid blood tests could speed up TB diagnosis, save the NHS money
January 18, 2019 - Researchers develop intelligent system for ‘tuning’ powered prosthetic knees
January 18, 2019 - Monoclonal antibody pembrolizumab prolongs survival in patients with squamous cell carcinoma
January 18, 2019 - Microrobots could one day deliver drugs inside the body
January 18, 2019 - Maintaining an active lifestyle in older age could prevent dementia
January 18, 2019 - New research detects mosquito known to transmit malaria for the first time in Ethiopia
January 18, 2019 - Researchers identify new genes linked to development of age-related macular degeneration
January 18, 2019 - Computerized method helps better protect pharma patents
January 18, 2019 - New guidelines to make swallowing safer for people in Australian nursing homes
January 18, 2019 - Lumex Instruments’ RA-915AM monitor installed at Hg treatment plant in Almadén, Spain
January 18, 2019 - ACCC survey finds multiple threats to growth of cancer programs
January 18, 2019 - Meeting the challenge of engaging men in HIV prevention and treatment
January 18, 2019 - Furloughed Feds’ Health Coverage Intact, But Shutdown Still Complicates Things
Children who eat fish at least once a week sleep better and have higher IQ scores

Children who eat fish at least once a week sleep better and have higher IQ scores

image_pdfDownload PDFimage_print

Children who eat fish at least once a week sleep better and have IQ scores that are 4 points higher, on average, than those who consume fish less frequently or not at all, according to new findings from the University of Pennsylvania published this week in Scientific Reports, a Nature journal.

Previous studies showed a relationship between omega-3s, the fatty acids in many types of fish, and improved intelligence, as well as omega-3s and better sleep. But they’ve never all been connected before. This work, conducted by Jianghong Liu, Jennifer Pinto-Martin and Alexandra Hanlon of the School of Nursing and Penn Integrates Knowledge Professor Adrian Raine, reveals sleep as a possible mediating pathway, the potential missing link between fish and intelligence.

“This area of research is not well-developed. It’s emerging,” said Liu, lead author on the paper and an associate professor of nursing and public health. “Here we look at omega-3s coming from our food instead of from supplements.”

For the work, a cohort of 541 9- to 11-year-olds in China, 54 percent boys and 46 percent girls, completed a questionnaire about how often they consumed fish in the past month, with options ranging from “never” to “at least once per week.” They also took the Chinese version of an IQ test called the Wechsler Intelligence Scale for Children-Revised, which examines verbal and non-verbal skills such as vocabulary and coding.

Their parents then answered questions about sleep quality using the standardized Children Sleep Habits Questionnaire, which included topics such as sleep duration and frequency of night waking or daytime sleepiness. Finally, the researchers controlled for demographic information, including parental education, occupation and marital status and number of children in the home.

Analyzing these data points, the Penn team found that children who reported eating fish weekly scored 4.8 points higher on the IQ exams than those who said they “seldom” or “never” consumed fish. Those whose meals sometimes included fish scored 3.3 points higher. In addition, increased fish consumption was associated with fewer disturbances of sleep, which the researchers say indicates better overall sleep quality.

“Lack of sleep is associated with antisocial behavior; poor cognition is associated with antisocial behavior,” said Raine, who has appointments in the School of Arts and Sciences and Penn’s Perelman School of Medicine. “We have found that omega-3 supplements reduce antisocial behavior, so it’s not too surprising that fish is behind this.”

Pinto-Martin, who is executive director of Penn’s Center for Public Health Initiatives, as well as the Viola MacInnes/Independence Professor of Nursing and a professor of epidemiology in Penn Medicine, sees strong potential for the implications of this research.

“It adds to the growing body of evidence showing that fish consumption has really positive health benefits and should be something more heavily advertised and promoted,” she said. “Children should be introduced to it early on.” That could be as young as 10 months, as long as the fish has no bones and has been finely chopped, but should start by around age 2.

“Introducing the taste early makes it more palatable,” Pinto-Martin said. “It really has to be a concerted effort, especially in a culture where fish is not as commonly served or smelled. Children are sensitive to smell. If they’re not used to it, they may shy away from it.”

Given the young age of this study group, Liu and colleagues chose not to analyze the details participants reported about the types of fish consumed, though they plan to do so for work on an older cohort in the future. The researchers also want to add to this current observational study to establish, through randomized controlled trials, that eating fish can lead to better sleep, better school performance and other real-life, practical outcomes.

For the moment, the researchers recommend incrementally incorporating additional fish into a diet; consumption even once a week moves a family into the “high” fish-eating group as defined in the study.

“Doing that could be a lot easier than nudging children about going to bed,” Raine said. “If the fish improves sleep, great. If it also improves cognitive performance — like we’ve seen here — even better. It’s a double hit.”

Tagged with:

About author

Related Articles