Key Takeaways
- Acute sleep deprivation reduces cortical response to DLPFC tDCS by up to 30%.
- Patients with untreated obstructive sleep apnoea show lower adherence to neuromodulation protocols.
- Integrating sleep screening into pre-treatment pathways improves metabolic outcomes at 6 months.
Sleep and brain plasticity
Non-invasive neuromodulation acts on circuits that depend heavily on consolidation during deep sleep. Recent BMH Lab studies document correlations between slow-wave sleep index and prefrontal activity changes measured with high-density EEG after tDCS cycles.
Clinical implications
Before starting a stimulation protocol, centres enrolled in the Italian registry recommend PSQI questionnaires and, when clinically indicated, polysomnography. Correcting sleep disorders may amplify effects on glycaemia and eating behaviour.
"Treating sleep is not optional: it is an integral part of the metabolic neuromodulation protocol."
— Prof. Elena Rossi, University of Milan
Prof. Elena Rossi
Full Professor of Clinical Neuroscience at the University of Milan. Director of the BMH Neuromodulation Lab. Her research focuses on non-invasive brain stimulation for metabolic and psychiatric disorders. She has authored over 80 peer-reviewed publications and led 6 multicentre clinical trials.