Nuclear magnetic resonance, or NMR, is a phenomenon exhibited by certain nuclei that can absorb characteristic radio frequency radiation under specific conditions. NMR is extensively applied in spectroscopy and medical imaging. In both these applications, the sample or subject is placed in a magnetic field and irradiated with radio frequency energy. NMR spectroscopy provides detailed information about the electronic environments of atoms in the sample. It generates a spectrum that represents the characteristic absorption frequencies of the sample plotted against the peak intensities. The NMR spectrum can reveal the molecular structures of organic compounds and biological macromolecules and can show dynamic processes alongside reaction kinetics. In medicine, magnetic resonance imaging, commonly called MRI, uses NMR to generate detailed images of internal organs and tissues.