What is the normal range for an adult's resting heart rate?

The normal resting heart rate for adults typically falls between 60 and 100 beats per minute. This range reflects the number of times the heart beats when the body is at rest, indicating a stable cardiovascular system. A heart rate within this range is considered healthy for most adults and suggests that the heart is effectively pumping blood throughout the body.

Variations in resting heart rate can occur due to factors like age, physical condition, medications, and overall health. For example, physically active individuals often have lower resting heart rates as a result of improved cardiovascular efficiency. However, a rate consistently below or above this normal range might suggest underlying health issues that could require further examination.

The other ranges presented do not match the standard accepted values for resting heart rates in healthy adults, making those options less suitable for determining normal physiological conditions.