Antibiotics are used to treat or prevent some types of bacterial infections. They aren't effective against viral infections, such as the common cold or flu. Antibiotics should only be prescribed to treat conditions:
1 A normal adult resting heart beat is between 60-100 heartbeats per minute. 2  Some experienced athletes may see their resting heartrate fall below 60 beats per minute. 3  Tachycardia refers to the heart beating too fast at rest-over 100 beats per minute.
An average heart beats about 100,000 times daily. A pulse rate is measured in the amount of beats in one minute. At rest, a pulse averages 70 to 80 beats per minute. Endurance athletes can have a resting pulse as low as 40 beats per minute.