Some people drink distilled water, saying that it is in hygienic condition with no bacteria. But the truth is contrast. As distilled water is heated and boiled for a long time, the nitrate in it is converted into nitrite.
This nitrite destroys the hemoglobin, causing blood pressure to drop and, when severe, it will cause collapse. And distilled water has lost the minerals needed by human body, so it has no advantage to drink it.