How dangerous can smelly flatulence be?

The smell of flatulence has secret health benefits - and could help stave off cancer, strokes, heart attacks and dementia, scientists have revealed. Hydrogen sulfide is one of a number of potent smelly gases produced by bacteria as it breaks down food in the gut. read more

Luckily, natural gas leaks are rare. Fires and explosions are even more uncommon because the rotten egg smell helps people get help quickly before anything bad happens. Carbon monoxide. Carbon monoxide, CO, is a dangerous gas that you can't see or smell. It happens when appliances that burn fuel aren't working right. It can also happen if a car is running inside a garage. Carbon monoxide can make you very sick. read more