When a parent tells you; ‘He is impulsive, can’t organise himself, endlessly seeks new and exciting things and when he is upset, acts before he thinks’, it is reasonable to think, it must be ADHD. It might be, but exploring other relational explanations may result in a different understanding that benefits all family members and resolves presenting concerns without locating the problem inside one person.
What Other Explanations?
Impulsivity defined as ‘a predisposition toward rapid, unplanned reactions to internal or external stimuli without regard to the negative consequences of these reactions to the impulsive individual or to others’ has been linked to a range of childhood difficulties. Authors, Yan et al (2026) propose a relational model based on emotional security theory which suggests that exposure to family conflict ‘threatens children’s emotional security by increasing vigilance, emotional reactivity, and physiological arousal within the family system’ which disrupts the child’s capacity to self-regulate, resulting in impulsive behaviours.
The Importance of Sleep
An additional variable is sleep, which has been identified as an ‘intervening process linking parent–child conflict with changes in children’s internalizing and externalizing symptoms.’ When family conflict and difficult parent – child interactions make home a place of anxiety and unpredictability, sleep suffers and poor sleep is associated with heightened amygdala activation and reduced engagement of regulatory brain processes. It is a vicious cycle that encompasses all family members resulting in a recursive disruption from the inside neurobiology to the outside socio-relational world.
Exploring the Association Between Family Conflict, Impulsivity and Sleep
Authors Yan et al (2026) ‘hypothesized that higher levels of family conflict would be associated with more child sleep problems at a later time point, which would in turn be associated with increased impulsivity’. Data was collected from 11,878 parent – child dyads, recruited at ages 9–10 through probability sampling on a yearly basis over three years. It included measures of family conflict, sleep disturbance and the UPPS-P Impulsive Behavior Scale for Children which identifies five dimensions of impulsivity.
What Did They Find?
When children reported higher levels of family conflict at 9-10 years, their parents also reported that the child experienced more sleep difficulties a year later. These in turn were linked to indicators of impulsivity including lack of perseverance, lack of planning, negative urgency, and positive urgency a year later. One explanation is that poor sleep due to a lack of safety in the home ‘spills over into broader difficulties in self-regulation during waking hours.’
What Does this Mean for Clinicians?
It is challenging for parents to acknowledge that conflict in the family is disrupting their child’s sleep to the extent that it is affecting the child’s neurological functioning and behaviour. Exploring both the challenges that families are facing that produce conflict and the management of sleep are important first steps when children present with dysregulated behaviour. Establishment of bedtime routines, managing electronic devices and creating safe and comfortable sleep environments may be a good first step for all family members to feel safe, rested, and better regulated. This then provides a more solid foundation to address conflicts between adults or parents and children to reduce stress and create a calmer world where everyone can manage themselves and their relationships more effectively. These strategies can be implemented quickly, will do no harm, and may eliminate the need for diagnosis and medication.
Yan, J., Butler, K., Curtis, S., & Peterson, Z. The Association Between Family Conflict and Child Impulsivity: Child Sleep Problems as a Mechanism Family Process, 2026; 65:e70170 https://doi.org/10.1111/famp.70170
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