The morning before
Question: What is the evolutionary advantage of morning sickness? Why are so
many pregnant women incapacitated and unable to eat sensibly for the first three
months of their pregnancy and how can this possibly help the developing embryo?
Do any other animals get morning sickness?
Answer: The quick answer to this question is that statistically morning
sickness reduces the likelihood of miscarriage, pre-term birth, low birthweight
and perinatal death. More interesting is the question of how this advantage is
conferred. No one really knows, although several theories have been
advanced.
The traditional hypothesis is that nausea and…
