Irregular bedtimes tied to behavioural problems in kids

Oct 14 2013, 13:34 IST
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Irregular bedtimes tied to behavioural problems in kids Irregular bedtimes tied to behavioural problems in kids
SummaryChildren who do not have a regular bedtime are more likely to suffer behavioural problems.

Parents, please note! Children who do not have a regular bedtime are more likely to suffer behavioural problems, a new study has found.

Researchers from University College London (UCL) found that irregular bedtimes could disrupt natural body rhythms and cause sleep deprivation, undermining brain maturation and the ability to regulate certain behaviours.

"Not having fixed bedtimes, accompanied by a constant sense of flux, induces a state of body and mind akin to jet lag and this matters for healthy development and daily functioning," said Professor Yvonne Kelly from UCL Epidemiology & Public Health. "We know that early child development has profound influences on health and well being across the life course. It follows that disruptions to sleep, especially if they occur at key times in development, could have important lifelong impacts on health," Kelly said.

Analysing data from more than 10,000 children in the UK Millennium Cohort Study, the team collected bedtime data at three, five and seven years, as well as incorporating reports from the children's mothers and teachers on behavioural problems.

The study found a clear clinical and statistically significant link between bedtimes and behaviour as irregular bedtimes affected children's behaviour by disrupting circadian rhythms, leading to sleep deprivation that affects the developing brain.

As children progressed through early childhood without a regular bedtime, their behavioural scores which included hyperactivity, conduct problems, problems with peers and emotional difficulties worsened. However, children who switched to a more regular bedtime had clear improvements in their behaviour.

"What we've shown is that these effects build up incrementally over childhood, so that children who always had irregular bedtimes were worse off than those children who did have a regular bedtime at one or two of the ages when they were surveyed," Kelly said.

"But our findings suggest the effects are reversible. For example, children who change from not having to having regular bedtimes show improvements in their behaviour," Kelly added. The study was published in the journal Pediatrics.

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