this is true! someone can have it and not have any presentable symptoms
Answer:
Target Heart Rate
Explanation:
Target heart rate is generally expressed as a percentage (usually between 50 percent and 85 percent) of your maximum safe heart rate. The maximum rate is based on your age, as subtracted from 220. So for a 50-year-old, maximum heart rate is 220 minus 50, or 170 beats per minute.
The arteries carry oxygenated blood away from heart and then re-takes it back to your system
Answer:
I think that health related professions are important in the society because they give there opinions to keep us healthy, and they also have backup plan when we are sick to try to make us better.
