Describe the normal range for an adult’s heart rate.

The normal resting heart rate for adults typically falls within the range of 60 to 100 beats per minute. This range is established based on extensive research and reflects the heart's efficiency in maintaining blood circulation while accommodating the body's varying demands at rest. Heart rates below 60 beats per minute are considered bradycardia, which may be normal for athletes or highly trained individuals, but can indicate a problem in less active people. Conversely, a resting heart rate above 100 beats per minute is classified as tachycardia, which may be a sign of stress, anxiety, or a medical condition. Understanding this normal range is essential for healthcare professionals as it helps assess an individual's cardiovascular health effectively.