Myocardial infarction occurs when blood flow to heart muscle stops, causing tissue death. Most common symptom is chest pain radiating to left shoulder, arm or jaw. Other symptoms include shortness of breath, nausea, and feeling faint. About 30% of people have atypical symptoms. Women often present without chest pain, often with neck or arm pain
Heart rate is measured in beats per minute (bpm). Normal resting adult heart rate is 60-100 bpm. Heart rate varies with body's physical needs and various factors
Daily aspirin therapy can lower risk of heart attack and stroke. Primary prevention recommended for those with no heart events. Secondary prevention beneficial for those with existing heart disease
Trans fats are unsaturated fats found naturally in some animal products. Most unhealthy trans fats come from industrially produced partially hydrogenated oils. PHOs were banned in US since 2021 but still present in processed foods
HRV measures the difference in time between heartbeats. It results from the autonomic nervous system's actions. Normal resting heart rate for adults is 60-100 beats per minute
Average adult walking speed is about 3 mph. Walking speed varies by age, sex, height, weight, fitness level. Brisk walking pace is 3.5-4 mph according to CDC guidelines