Ключевые слова: adult, aged, arm, beat, blood, cardiac, cardiology, check, closeup, concept, counting, daily, disease, elderly, examine, female, finger, hand, health, healthcare, heart, heartbeat, hold, home, hypertension, ill, lifestyle, mature, measure, medical, middle, monitoring, old, older, patient, people, person, polycardia, pressure, pulsation, pulse, rate, rhythm, senior, sick, tachycardia, unhealthy, unwell, woman, wrist,