Long non-coding RNAs (lncRNAs) are a type of RNA molecule that is greater than 200 nucleotides in length and does not code for proteins. Despite not encoding proteins, lncRNAs play crucial roles in various cellular processes, including gene regulation, chromatin modification, and epigenetic regulation. Research in this area focuses on understanding the functions and mechanisms of lncRNAs, as well as their potential roles in diseases such as cancer, neurological disorders, and cardiovascular diseases. Studying lncRNAs can provide valuable insights into the complexity of gene regulation and cellular processes, offering potential targets for therapeutic interventions.