Oxygen is the most essential factor for keeping us live and this fact is known to all but there can also be a situation when oxygen debt can cause and further on paying such debt back, no loss can be occurred to the person.
When your body demands more oxygen but supply is not so, it is situation of oxygen debt. Mainly, such condition occurs when you exercise or play. Actually at that time, your many muscles work together and so require more oxygen to continue but if at that time the supply of oxygen is not in such required amount, oxygen debt situation takes place which can lead the person to fatigue, or can even stop breathing. By anaerobic respiration the person starts to produce lactic acid and this can cause cramps. But if oxygen is supplied in time as required the person can be normal as he was before.
