Neutral because you don't do anything bad but go somewhere with your friend.
Substance abuse can harm one's physical, emotional and/or mental state.
therefore causing the user to do things they would not do under the influence of the substances.
When infants are born their muscular tissue is almost completely formed
You can simply go to the website
<span>PubMed.gov
Type in the words
</span><span>Irritable bowel syndrome
Go through the results and pick out the one you think is the most related.
This is one article that I think is related to what you're looking for:
</span><span>"New insights into the pathogenesis and treatment of irritable bowel syndrome."</span>This is the link: https://www.ncbi.nlm.nih.gov/pubmed/28135659