Magnetic resonance spectroscopy (MRS) is a non-invasive imaging technique that analyzes the chemical composition of tissues in the body. It works by measuring the magnetic properties of certain atomic nuclei, primarily hydrogen, carbon, and phosphorus, to identify and quantify various metabolites present in a sample. This information can help in diagnosing diseases, monitoring treatment responses, and understanding metabolic processes. MRS is often used in conjunction with magnetic resonance imaging (MRI) to provide a more comprehensive view of tissue health. By detecting specific biochemical changes, MRS can assist in identifying conditions such as tumors, neurological disorders, and metabolic diseases, offering valuable insights for medical professionals.