Could insomnia cause ADHD? Research wakes up to the idea

For millions of Americans with ADHD, getting a good night's sleep can be an uphill battle. Now researchers are investigating whether that battle may have helped start the overall war.

Scientists are exploring a surprising new theory about attention-deficit/hyperactivity disorder (ADHD) that suggests disruptions to the body's internal clock may not just be a symptom of the condition, as long believed—but potentially one of its causes.

A scientific wake-up call

While sleep problems have long been associated with the condition—with as many as 80% of adults with ADHD experiencing sleep disturbances—new research suggests the relationship may go both ways.

Disruptions to circadian rhythms, or the body's internal 24-hour clock, may contribute to hallmark ADHD symptoms like difficulty concentrating, impulsivity, and emotional dysregulation, according to a newly published study.

Previous research also suggests people with ADHD often experience delayed melatonin production, meaning their bodies naturally signal bedtime later than usual.

Why it’s a big deal: An estimated 22+ million Americans have ADHD, including ~7 million children/adolescents and ~15.5 million adults.

But…Researchers aren't jumping to conclusions just yet, as one study isn’t conclusive proof that circadian disruptions cause ADHD. But the new research could encourage doctors to incorporate sleep tracking, morning light exposure, and other circadian-focused interventions into ADHD care.