Final 2025 CDC data show a record-low U.S. fertility rate of 53.2 and a 7% drop in teen births. What the numbers mean for maternity care access. Ric Flair, 77, was hospitalized after a Tampa fall ...

Villi are tiny projections in the small intestine that absorb nutrients from food. Diseases like celiac disease and inflammatory bowel disease can damage villi and cause malabsorption. Villi are ...

Add Yahoo as a preferred source to see more of our stories on Google. Your small intestine is lined with tiny protrusions called villi that play a big role in digestion. Sebastian Kaulitzki/Science ...

The lining of your small intestine, the tissue that separates half-digested food from your bloodstream, is only one cell thick — and by the end of this week, almost none of the cells reading this ...