Ключевые слова: ache, alone, angina, athlete, attack, background, body, cardiac, care, caucasian, chest, concept, disease, exercise, faintness, fitness, football, hand, having, health, healthcare, healthy, heart, heartache, holding, human, illness, injury, male, man, medical, medicine, outdoor, pain, people, person, physical, run, runner, running, sick, sickness, sport, stress, stroke, tired, training, unhealthy, workout, young,