Hyperactive boys don't get enough sleep, which can worsen their condition according to new research. Published in the November issue of Pediatrics, the study is the first to examine a large sample of children and to study the link between lack of sleep and hyperactivity.
As part of the investigation, 2057 mothers answered yearly questionnaires concerning sleep duration and hyperactivity of their children. Data was collected until kids reached five years of age and was analyzed by a team of scientists from the Université de Montréal, its affiliated Hôpital du Sacré-Cœur de Montréal and Sainte Justine University Hospital Research Center, as well as the Université Laval and the French National Institute for Health and Medical Research (INSERM).
" Hyperactivity problems may interfere with night-time sleep," says senior author Jacques Montplaisir, a professor in the Université de Montréal Department of Psychiatry and director of the Sleep Disorders Center at Hôpital du Sacré-Cœur de Montréal. "We found that children who didn't sleep long were generally hyperactive boys who lived under adverse family conditions."
"On the other hand, short or fragmented sleep leads to sleepiness, which could manifest as hyperactivity in boys," explains Dr. Montplaisir, noting children who slept persistently for at least 11 hours had low hyperactivity scores. "However, the risk of abbreviated sleep in highly hyperactive children is stronger than the risk of hyperactivity among kids with short sleep duration."
The research team found that boys (more than girls) whose mothers had low education, insufficient family income and whom were comforted outside the bed or joined the parental bed after an awakening at night when they were young were more at risk of having both short sleep duration and high hyperactivity.
Study respondents were a mostly (92.1 percent) homogenous pool of mothers who were white and French-speaking Quebecers. Questions asked of mothers included: how long does your child sleep during the night (on average); in the past three months, how often would you say your child was restless or hyperactive; couldn't stop fidgeting; impulsive or acted without thinking; had difficulty waiting for his/her turn at games; couldn't settle down to do anything or couldn't wait when promised something?"
About the Study:
The article "Short Nighttime Sleep-Duration and Hyperactivity Trajectories in Early Childhood," published in the journal Pediatrics, was authored by Evelyne Touchette, Bruno, Falissard of the INSERM, France, Michel Boivin, PhD of Université Laval and Sylvana M. Côté, Dominique Petit, Xuecheng Liu, Richard E. Tremblay and Jacques Y. Montplaisir of the Université de Montréal.
Partners in Research:
This study was funded by the Cana¬dian Institutes of Health Research, the Quebec Department of Health and Social Services, the Social Sciences and Humanities Research Council of Canada, the Quebec Fund for Research on Society and Culture, the Quebec Fund for Research on Nature and Technology, the Health Research Fund of Quebec, Quebec's Ministry of Research, Science and Technology, Human Resources Development Canada, Health Canada and the National Science Foundation.
On the Web:About the cited Pediatrics article:
Sylvain-Jacques Desjardins | EurekAlert!
The personality factor: How to foster the sharing of research data
06.09.2017 | ZBW – Leibniz-Informationszentrum Wirtschaft
Europe’s Demographic Future. Where the Regions Are Heading after a Decade of Crises
10.08.2017 | Berlin-Institut für Bevölkerung und Entwicklung
At the productronica trade fair in Munich this November, the Fraunhofer Institute for Laser Technology ILT will be presenting Laser-Based Tape-Automated Bonding, LaserTAB for short. The experts from Aachen will be demonstrating how new battery cells and power electronics can be micro-welded more efficiently and precisely than ever before thanks to new optics and robot support.
Fraunhofer ILT from Aachen relies on a clever combination of robotics and a laser scanner with new optics as well as process monitoring, which it has developed...
Plants and algae use the enzyme Rubisco to fix carbon dioxide, removing it from the atmosphere and converting it into biomass. Algae have figured out a way to increase the efficiency of carbon fixation. They gather most of their Rubisco into a ball-shaped microcompartment called the pyrenoid, which they flood with a high local concentration of carbon dioxide. A team of scientists at Princeton University, the Carnegie Institution for Science, Stanford University and the Max Plank Institute of Biochemistry have unravelled the mysteries of how the pyrenoid is assembled. These insights can help to engineer crops that remove more carbon dioxide from the atmosphere while producing more food.
A warming planet
Our brains house extremely complex neuronal circuits, whose detailed structures are still largely unknown. This is especially true for the so-called cerebral cortex of mammals, where among other things vision, thoughts or spatial orientation are being computed. Here the rules by which nerve cells are connected to each other are only partly understood. A team of scientists around Moritz Helmstaedter at the Frankfiurt Max Planck Institute for Brain Research and Helene Schmidt (Humboldt University in Berlin) have now discovered a surprisingly precise nerve cell connectivity pattern in the part of the cerebral cortex that is responsible for orienting the individual animal or human in space.
The researchers report online in Nature (Schmidt et al., 2017. Axonal synapse sorting in medial entorhinal cortex, DOI: 10.1038/nature24005) that synapses in...
Whispering gallery mode (WGM) resonators are used to make tiny micro-lasers, sensors, switches, routers and other devices. These tiny structures rely on a...
Using ultrafast flashes of laser and x-ray radiation, scientists at the Max Planck Institute of Quantum Optics (Garching, Germany) took snapshots of the briefest electron motion inside a solid material to date. The electron motion lasted only 750 billionths of the billionth of a second before it fainted, setting a new record of human capability to capture ultrafast processes inside solids!
When x-rays shine onto solid materials or large molecules, an electron is pushed away from its original place near the nucleus of the atom, leaving a hole...
19.09.2017 | Event News
12.09.2017 | Event News
06.09.2017 | Event News
25.09.2017 | Power and Electrical Engineering
25.09.2017 | Health and Medicine
25.09.2017 | Physics and Astronomy