close-up of woman in black t-shirt is cracking her knuckles; after working hard that using hand and fingers

ache arm arthritis behavior black body bone break business care click close computer concentrate concept crack doing fatigue female finger fingers fold gesturing habit hands hard health interphalangeal joint knucklebone knuckles massage medical noise orthopaedic part popping posture press ready relax shirt signal sound stiff stress symbol tension typing woman work working wrist