You may scared of cockroach or it may make you crawl,but their Brain could one day save your Life.

Ya,it's because the central nervous systems of American cockroaches produce natural antibiotics that can kill bacteria which often deadly to the humans,some of the bacteria's such as methicillin-resistant Staphylococcus aureus (MRSA) and toxic strains of Escherichia coli, scientists from Simon Lee of the University of Nottingham in the U.K said this week.

Insect Brains Have "Clever Defense" Against Bacteria.
The scientists found the bugs had antibiotics only in their brain tissue, the most essential part of the body,When the team added the insect's antibiotics to human cells in the lab,there were no toxic effects.
It says insect-brain drugs for humans are still years away.