I will try to give you the best answer by completing your statement.
During a marathon, approximately 99% of your muscles needs are met by the OES or Oxygen Energy System. Energy systems are the ones encharge of distributing the energy you need for a certain act.
from the little information given, this statement is true
Arrhythmia meaning the heart is beating too slow and or its beating too fast
Answer:
drinking polluted waters can cause bacteria to intect the body, and get the person sick, as well as infecting a cut that the person might have, since any nick in the skin is a open source for bacteria, since the skin is the first line of defense against bad bacteria.
Explanation: