Biophysics is an interdisciplinary field that integrates principles of physics and biology to understand biological mechanisms at the molecular, cellular, and tissue levels. It is used to study how physical processes like motion, energy, and radiation affect the properties of the human body. Impact of Biophysics on the Body 1. Muscle Movement: Biophysics helps explain muscle contraction using concepts of forces and energy. 2. Nerve Signal Transmission: Electrical and chemical signals in the body rely on physical laws to transmit information between neurons. 3. Respiration and Circulation: Analysis of airflow and blood flow depends on principles of aerodynamics and hydrodynamics. 4. Interaction with Radiation: Studying the effects of radiation on cells and tissues and its applications in medical imaging and therapy. Applications Magnetic Resonance Imaging (MRI). Radiation Therapy. Development of prosthetics. Conclusion Biophysics plays a crucial role in understanding body functions and enhancing medical technologies that support human health "AL_mustaqbal University is the first university in Iraq"