3 ms·
Some caves have a higher level of CO2, ie 'bad air'. You'll probably notice, one of the more entertaining symptoms of this is a 'feeling of impending doom'.
by Joof 6y ago
Some caves have a higher level of CO2, ie 'bad air'. You'll probably notice, one of the more entertaining symptoms of this is a 'feeling of impending doom'.
- dhosek 6y agoI get a feeling of impending doom just reading some of the posts on this story.