RecruitingBehavioural interventionMBM and taVNS for Low Back Pain and Depressive SymptomsThis two-arm randomized controlled trial aims to test the preliminary effect of home-based mindfulness-based meditation and transcutaneous auricular vagus nerve stimulation on managing pain and depressive symptoms among community-dwelling older adults with chronic low back pain and depressive symptoms; and the effect of home-based mindfulness-based meditation and transcutaneous auricular vagus nerve stimulation on the host Brain-Gut Axis.