Runner Things #2226
Posted on 10 Feb, 2014
Run EMC
Some Other Things You May Like
The Voice That Calls
Free Radicals - A Clear And Simple Explanation
When Is It Too Cold To Exercise Outside?
WTF Is Happening To My Digestive Tract When I Run?
You get a new stomach lining every three to four days. The mucus-like cells lining the walls of the stomach would soon dissolve due to the strong digestive acids in your stomach if they weren't constantly replaced.
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