Ключевые слова: ache, aged, back, backache, body, business, businessman, care, caucasian, chair, coffee, computer, copy, cup, drink, freelancer, health, home, hurt, illness, indoors, job, kidney, laptop, lumbar, male, man, medical, medicine, neurology, old, online, orthopaedic, pain, people, person, problem, senior, sitting, space, spinal, spine, suffering, symptom, table, text, therapy, unhealthy, work, workplace,