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.
Having a normal, resting pulse between 60 and 100 beats per minute typically means your heart is efficiently functioning and you are in good cardiovascular health. According to the Mayo Clinic, some athletes may have resting pulse of 40 beats per minute.