Answer:
a change from a seronegative to a seropositive condition
Explanation:
Answer:
A good workout option for health class would be cardio or yoga.
Explanation:
Answer:
The answer is age.
Explanation:
So for a 50-year-old, maximum heart rate is 220 minus 50, or 170 beats per minute.At a 50 percent exertion level, your target would be 50 percent of that maximum, or 85 beats per minute.
