You'll have to carefully manage your oxygen levels and fight for oxygen sources if you even want a chance at acquiring underwater resources. (onrpg.com)
In addition to the regolith's use as a potential oxygen source, the soil may be harvested to extract fuel or other elements. (newscientist.com)
It can also decrease the blood supply to the baby, meaning that the baby's oxygen source would be depleted. (babygaga.com)