Ключевые слова: aging, arthritis, assistance, assistant, brain, care, caucasian, close, day, dementia, depression, disease, doctor, dopamine, elderly, exam, female, geriatric, hand, hands, health, healthcare, holding, home, horizontal, hospital, illness, medical, medication, medicine, nervous, neurology, old, one, paralysis, parkinson, parkinsons, patient, people, person, process, senior, shake, symptom, system, trembling, tremor, up, woman,