Children whose mothers had a diet rich in nutrients, during pregnancy, had a much more healthy birth than children whose mothers had a diet low in nutrients. Mothers should take into account the amount of nutrients from food rather than quantity of food or energy consumption.
Darkness and solitude: the pregnant woman in its active labor, should stand alone in a discreet lit room. Strong light presence in the room and too many people around can prevent the woman to focus and deal with painful contractions. Neither a large medical staff should not be in her room.