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A member asked:

When pregnant, why is it so uncomfortable to lay on your back? feels hard to breathe and heart race pounds??

A doctor has provided 1 answer

"Weight lifting": When lying on one's back when pregnant, the enlarged uterus with the baby are weighing on the major blood vessels and pushing up the diaphragm and lungs making it difficult to breathe and make the heart beat faster to keep up the blood pressure. When you sit up it is equivalent to a "dead lift" in weight lifting competition.

Answered 3/2/2015

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