For any parent, the joy of a new arrival can be suddenly eclipsed by the news that their baby has a heart defect. When a specialist mentions the word "surgery," the world seems to stop. It is a moment ...
When I go for a walk or to the gym, people always seem to be checking their pulse, whether by hand or with a wearable. Why is heart rate so important? ANSWER: Your heart rate, or pulse, is the number ...