A–Z Glossary

Carbon monoxide exposure

Carbon monoxide exposure occurs when carbon monoxide enters the body and reduces oxygen availability by binding to hemoglobin.

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Quitting smoking before pregnancy

Quitting smoking before pregnancy

Why quitting before conception matters Smoking affects pregnancy before many people know they are pregnant. In the first weeks after conception, the embryo implants and the placenta begins to form. Cigarette smoke exposure during this period can affect oxygen delivery, vascular function, inflammation, and placental development. Carbon monoxide binds hemoglobin with high affinity, reducing oxygen […]