The number of heartbeats per minute is known as the heart rate, while the volume of blood that is pumped by the ventricles with each heartbeat is the stroke volume.
A normal resting heart rate for adults ranges from 60 to 100 beats per minute. Typically, a lower heart rate at rest indicates more efficient heart function and sounder cardiovascular fitness.
Stroke volume depends on the amount of shortening that the myocardial fibers can reach when functioning against arterial pressure, The normal range of Stroke volume is 50 to 100 ml.
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2,3,4, are right 1 is incorrect as far as I can tell
I think the answer is number 1
This is a true statement, researchers have recommended sleeping more on the stomach and sides
Answer:
sleeping near a baby monitor
Explanation:
because so you will know what happen to your baby
