Flu- like symptons and then no symptoms. i think im not so sure
Answer:
All of the above.
Explanation:
It's important to have a rotational balance between all of these.
It's more accurate, especially since heart rate is almost universally measures in beats-per-minute, than, say, timing your pulse for a [factor of 60] seconds (30 seconds, 20 seconds, 15 seconds, 12 seconds, etc.).
