Randomized Trialmoderate evidence
Enhancement of sleep slow wave activity using transcranial electrical stimulation with temporal interference: an interim analysis of the STRENGTHEN study.
Communications medicine·July 1, 2026·PMID 42386897
Why it mattersSlow wave sleep is critical for cognitive and physical restoration, and its decline with age or sleep disruption is linked to impaired recovery. A non-invasive method to enhance SWA could offer a novel tool for optimizing sleep quality and potentially mitigating age-related sleep decline in performance and longevity contexts.
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