Yes. EEG neurofeedback is non-invasive and drug-free. Sensors placed on the scalp only read the brain’s electrical activity — no electrical signal is delivered to the brain at any point. It is well-tolerated by both adults and children. Some people notice mild fatigue after early sessions as the nervous system adjusts, which typically resolves quickly. Grey Matters conducts a thorough brain map and intake assessment before training begins to ensure the approach is appropriate and precisely matched to each individual’s brain profile.