Sorry for late reply. Thank you for your answer. This makes sense.
So how about blood pressure? Is blood pressure related to heart rate? In my opinion it is - as heart is what (mostly) causes blood pressure, right? The other factor would be the elasticy of veins / arteries?
I've measured my blood pressure few days ago (made 3 measurements with a pause in between) and my blood pressure was 115/78 which is (according to this blood pressure chart http://healthiack.com/health/blood-p...pressure-chart
) quite optimal?
The stronger and healthier the heart, the lower the blood pressure - is this statement still valid nowadays?