Girls should be taught at school that giving birth to an unnaturally over-sized western baby that no longer fits down the birth canal may lead to a multitude of long term health problems.
This fits in with what I saw in staff in astronomical facilities and was reporting to the management team: 10-14% Oxygen: Emotional upset, abnormal fatigue, disturbed respiration.
The fittest person survives! The fighting man succeeds! He who Fights to Fit, will Survive to Succeed!