They are not bad in themselves. What make them bad for your health are the bacteria that they carry with them. Some of them can make you very sick.
yes
yes
no they are stupid insects like you are.
They live in madagascar, they hiss, and their cockroaches
spiders Cockaroaches
The correct spelling is masturbation, and the answer is no, it is not bad for your health.
Yes, tar is very bad for your health
Is Shepard Smith in bad health
They are not bad for your health, don't believe that b.s. (bad sources)
Yes its very very very bad for health
bad, bad, BAD
Generally no. They are, for the most part, enzymes, and they aren't "bad" for health.