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| |  Hyperactivity in Boys Increases Risk of Abbreviated Sleep MONTREAL -- November 30, 2009 -- 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, 2,057 mothers answered annual questionnaires concerning sleep duration and hyperactivity of their children. Data, which was collected until the children reached 5 years of age, was analysed 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, of the Université de Montréal and the Sleep Disorders Center, Hôpital du Sacré-Cœur de Montréal, both in Montréal, Quebec, Canada. “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 that 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%) 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 3 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? SOURCE: University of Montréal
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