Biochemistry is the study of the chemical processes and substances that occur within living organisms. It combines principles from both biology and chemistry to understand how biomolecules like proteins, lipids, carbohydrates, and nucleic acids interact and contribute to the functions of life. By examining these interactions, biochemists can uncover the molecular mechanisms behind various biological processes. This field plays a crucial role in many areas, including medicine, genetics, and biotechnology. For instance, understanding the biochemical pathways involved in diseases can lead to the development of targeted therapies and innovative treatments, ultimately improving human health and well-being.