Nuclear magnetic resonance (NMR) spectroscopy is a powerful analytical technique used to determine the structure of molecules. It works by applying a strong magnetic field to a sample, causing certain atomic nuclei, typically hydrogen or carbon, to resonate at specific frequencies. By measuring these frequencies, scientists can gather information about the molecular environment and connectivity of atoms within a compound. NMR spectroscopy is widely used in various fields, including chemistry, biochemistry, and medicine. In chemistry, it helps identify organic compounds, while in biochemistry, it can be used to study proteins and nucleic acids. In medicine, NMR techniques are foundational to magnetic resonance imaging (MRI).