JAK2 and Intervertebral disk degeneration: This study aimed to investigate the effect of Janus kinase 2 (JAK2)/signal transducer and activator of transcription 3 (STAT3) pathway inhibition on D‐galactose (D‐gal)‐induced senescence in nucleus pulposus cells (NPCs) and its potential to delay intervertebral disc degeneration (IVDD), as well as to investigate the underlying mechanisms.