I fine there results from the experiment very strange.
In our house plants never used to live long, a week tops. But since I've stopped smoking tobacco and gone to vaping, we have not had a single plant snuff it. So they may have got their results mixed up.
As I just turned round in my vaping chair, there is two Cyclamen in full bloom behind me. And I know they have been there for at least 2 months.
Anyway, you shouldn't mock the afflicted.