How does sleep affect ADHD?
Poor sleep can mimic and worsen ADHD-like symptoms. Insufficient or fragmented sleep impairs attention, working memory and impulse control, the same areas ADHD affects.
The symptom overlap
Sleep-deprived adults show measurable deficits in sustained attention, working memory and behavioral inhibition, the same areas ADHD affects. Because the symptoms overlap, sleep problems are worth checking as part of any ADHD assessment.
The bidirectional issue
ADHD also commonly disrupts sleep: delayed sleep phase, racing thoughts at bedtime, fragmented nights. The two reinforce each other.
First step
Look at your sleep quality and duration, and raise it with your doctor alongside any ADHD treatment. Regular, sufficient sleep (7–9 hours for most adults) supports daytime attention for everyone, with or without ADHD.
Sources
- Matthew Walker, Why We Sleep (Scribner, 2017). Why We Sleep: Unlocking the Power of Sleep and Dreams
- Hirshkowitz et al., Sleep Health, 2015. National Sleep Foundation's sleep time duration recommendations
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