Answer:
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. At an 85 percent level of exertion, your target would be 145 beats per minute.
Out of the following choices, the best treatment for a virus is is an antibiotic. However, most virus's can't be treated with an antibiotic and will be treated with over the counter remedies.
