When sitting or standing your posture can make a big difference to back pain, and muscle imbalances can lead to or aggravate joint pain.
Wrth eistedd neu sefyll, gall eich osgo wneud gwahaniaeth mawr i'ch poen cefn a gall anghydbwysedd cyhyrol arwain at boen yn y cymalau neu waethygu'r poen.