3
votes
2answers
214 views

Why does the the sight of gore causes nausea, vomiting and/or fainting?

Why is it that upon seeing anything the involves gore, e.g.: surgical cutting excessive blood blood and pain causes nausea, vomiting or fainting? And why does watching it repeatedly take away ...
10
votes
1answer
124 views

Why do we become bored of stimuli after multiple exposures to it?

Why do we become bored of songs, films, stories, jokes, food after being exposed to them or experiencing them multiple times? Why is it when our cortex becomes adequate at predicting the outcomes of ...