When I was training in Obstetrics in the sixties, we were taught to give pregnant women a fluid tablet (diuretic) if they become edematous. This happened in most pregnancies.Doctors believed that they knew best – if it did not look normal, we had to fix it. With a pill. The same thing happened with anemia. The blood count drops due to all the extra fluid in pregnancy, so the blood becomes diluted and it appears the women is anemic. So, rather than leaving alone, doctors gave women iron tablets. Now we know that these events are quite normal and natural, and we no longer intervene like we did before. Actually we were doing harm with those treatments. Nature often knows best and should be left alone in many cases. This scenario unfortunately still occurs today – too many unnecessary interventions when doing nothing is often the best approach.