How does a baby 'breathe' while inside its mom?

A fetus needs oxygen long before its lungs work and it's exposed to the air. Some ingenious biochemistry explains how the mother's blood delivers it.

Julie Pollock, Associate Professor of Chemistry, University of Richmond • conversation
May 5, 2020 ~6 min

Tags: placenta baby chemistry pregnancy blood oxygen mother biochemistry hemoglobin breathing breath fetus

What is a brain freeze?

Have you ever felt a piercing pain in your head when you eat something cold?

Tyler Daniel Anderson-Sieg, Doctoral Student in Biomedical Sciences, University of South Carolina • conversation
April 23, 2020 ~4 min

Tags: brain pain blood curious-kids curious-kids-us cold oxygen ice-cream blood-vessels

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