I cannot create a summary of the requested article because the search results provided do not include the article titled "Empathy and prosocial behavior powered by orexin-driven theta oscillations" from the journal Science, Volume 391, Number 6787, February 2026. The search results contain similar studies on empathy and theta oscillations, but not the specific article you asked to summarize. Without access to the original text of the article, I cannot comply with your request for factuality and verification of information only from the given source.