Question

question 2 of 5
why is it best to have a resting heart rate below 70 beats per minute?
a. people with resting heart rates above 70 bpm cannot reap the same benefits of exercise.
b. people with resting heart rates below 70 bpm can pump more blood per minute.
c. people with resting heart rates below 70 bpm have higher metabolism rates.
d. people with resting heart rates above 70 bpm are at higher risk for heart disease.

Explanation:

A lower resting heart rate (below 70 bpm) is often associated with better cardiovascular health. Research shows that consistently elevated resting heart rates (above 70 bpm) can be a risk factor for heart disease. This is because a higher resting heart rate may indicate increased stress on the heart, potential inflammation, or other underlying cardiovascular issues.

Option A is incorrect because people with resting heart rates above 70 bpm can still benefit from exercise. Option B is wrong as stroke volume (blood pumped per beat) and not just heart rate determines blood pumped per minute. Option C is incorrect as resting heart rate is not directly linked to higher metabolism rates in this context.

Answer:

D. People with resting heart rates above 70 bpm are at higher risk for heart disease.