Biophysics is a field that applies the principles and techniques of physics to study biological systems. It focuses on understanding the physical properties and processes that occur within living organisms. Physical methods, such as imaging techniques, spectroscopy, and mathematical modeling, are used in biophysics to investigate and analyze biological phenomena at the molecular, cellular, and organismal levels. These methods allow researchers to gain insights into the structure, function, and behavior of biological systems, helping to unravel the complex networks that govern life processes.