Murray, who is leading the study, has spent years looking into the effect of high altitude and oxygen restriction on the human body. He hopes these placentas, belonging to babies whose mums spent their pregnancies at high altitude, will reveal clues about

, sleep/development. In more detail the 8 key points of medical importance include:Laying the baby down in a supine flat positionKeeping the baby’s abdomen free of any restrictionsRegulating the baby’s body temperatureProtecting the baby’s feet and hip

as the fetus. It not only creates the pregnancy hormones needed for the mother to physically change during pregnancy, but also acts as a feeding mechanism and protects the baby from the mother's own immune system.Just as blood delivers oxygen and other vital

towards their chest, which restricts the airway. This can reduce the amount of oxygen your baby gets and could lead to suffocation.The CPSC made some handy safety suggestions for parents using baby slings:Ensure your baby’s face isn’t coveredEnsure you can

is usually given two drugs: The first works on the mother to delay, or even stop, the labour and the second, a steroid, works to speed up the development of the baby's lungs so that they are ready to breathe oxygen after the birth if labour continues

cord emerges through the cervix and so risks being constrained as the baby comes out, so cutting off the baby's oxygen supplyElective caesarianC-sections are not a minor operation, they cost significantly more than vaginal births, carry a higher risk