The so-called small intestine is about 22 feet long on average. That's over three times the size of LeBron James. The small intestine is also super thin, just one and 1/2 to two inches around ...

Researchers at the Francis Crick Institute have found that the small intestine grows in response to pregnancy in mice. This partially irreversible change may help mice support a pregnancy and prepare ...

It can take six hours for the small intestine to do its job. The nutrients are sucked from the inner surface of the small ...

Interestingly, the small intestine remained longer after birth ... "We don't often think about organs changing size or appearance in response to triggers in adulthood rather than earlier childhood ...