How does stress affect the digestive system

How can a person  best  reduce the risk of injuries on the road?  

If you or someone you know may have a mental disorder, it's important to discuss this concern with a trusted adult. t or f

If you were running a marathon, which type of muscle fibers would be most useful to you? a. slow-twitch b. fast-twitch, type i a c. intermediate-twitch, type ii b d. slow-intermediate twitch, type i b select the best answer from the choices provided. a b c d