A–Z Glossary

Inferior vena cava compression

Pressure on the large vein that returns blood from the lower body to the heart.

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Is sleeping on back always dangerous

Is sleeping on back always dangerous

Back sleeping in pregnancy: the short answer No, sleeping on your back is not always dangerous. In pregnancy, the concern is context-dependent. Many people can lie on their back for short periods without any obvious problem, especially earlier in pregnancy. What changes over time is that the growing uterus can press on major vessels and […]