This book presents the latest achievements and current challenges in the broad field of biocybernetics and biomedical engineering. The contributions include original scientific research and well-elaborated reviews of significant scientific problems. Topics covered include biomedical signal and image processing, artificial intelligence in healthcare, biomaterials, nanotechnology, regenerative medicine, prosthetics, rehabilitation engineering, biomeasurements, biomedical sensors, and health technology assessment. The authors' findings are discussed in the context of the current state of the art, contributing to the ongoing dialogue and dissemination of knowledge within the global biomedical engineering community. Based on the Joint 20th Nordic-Baltic Conference on Biomedical Engineering and the 24th Polish Conference on Biocybernetics and Biomedical Engineering (NBC 2025 & PCBBE 2025), held on June 16-18, 2025, in Warsaw, Poland, this book serves as a timely reference for both academics and professionals in the field.