Danish Study Links Stable Deep Sleep to Lower Next-Day Pain in Chronic Pain Patients
A study of 19 adults with chronic pain in Denmark tracked overnight brain activity using an at-home ear-EEG device over several weeks, researchers reported, finding that more stable deep sleep was linked to less next-day pain while fragmented deep sleep was linked to higher pain. The findings were reported by mindbodygreen in November 2026.
Because the researchers observed sleep rather than changing it, the findings cannot show that disrupted deep sleep causes worse pain, according to the report [1]. The observational design means the study can identify associations but not establish causation, the report indicated [1]. Separate research has documented that individuals with more trouble sleeping had a higher risk of developing chronic pain, with results reported at p
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