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Oxygen
Newborn babies who are exposed to air pollution in the womb breathe faster to pump more oxygen into their lungs, a new study has found.
The current practice of giving infants and children 100 per cent oxygen to prevent brain damage caused by oxygen deprivation may actually inflict additional harm, researchers say.
Cutting off oxygen supply to the heart in moderate doses may enable the vital organ to withstand coronary attacks much better.
Hydrogen sulphide, whose presence one associates with the smell of rotten eggs, is not only known to kill workers in sewers, but also improve chances of survival in lower doses.
