Farts are caused by trapped air, which can come from many sources. Some of it is air that we have swallowed while chewing or drinking. Some air is caused by gas seeping into our intestines from our blood, and some gas is produced by chemical reactions in our intestines or bacteria living in our guts.
http://www.oddee.com/item_98612.aspx
The next time someone at your office lets out a silent but deadly emission, maybe you should thank them. A new study at the University of Exeter in England suggests that exposure to hydrogen sulfide — a.k.a. what your body produces as bacteria breaks down food, causing gas — could prevent mitochondria damage.
http://theweek.com/speedreads/450160/study-smelling-farts-may-good-health
Some experts think that farts are a natural part of your digestive system, so holding them in won't harm you. Others think that at best, holding them in can cause gas, bloating, and other uncomfortable symptoms, and at worst, repressing gas can cause hemorrhoids or a distended bowel.
http://www.oddee.com/item_98612.aspx
Passing gas may be embarrassing for most of us, but it might make you feel better to know that it's one of the most common bodily functions of all time. Everyone does it, from Halle Berry to the Queen of England. In fact, the word fart is one of the oldest words in the English language!
http://www.oddee.com/item_98612.aspx
1 Stealth: You hold it until you've determined it's safe to release. 2  Honest: You admit that you farted but offer good medical reasons. 3  Proud: You think your farts are exceptionally fine. 4  Strategic: You fart and then conceal it with loud coughing.  Thrifty: You always keep a couple of good farts in reserve.
http://www.quizrocket.com/fart-quiz
The more sulfur-rich your diet is, the more terrible your farts will smell. Some foods contain more sulfur than others, which is why eating things like beans, cabbage, cheese, soda, and eggs can cause gas that will peel the paint off the walls!
http://www.oddee.com/item_98612.aspx
I am the Crop Dusting Fart. Your fart is probably the most malicious fart there is. You approach your unknowing victim and distract them with idle chit chat. As your conversation ends, you slowly release a stream of noxious gas and exit the location, leaving your friend to choke on your stink cloud.
http://www.quizrocket.com/fart-quiz
4Farts Have Been Clocked At A Speed Of 10 Feet Per Second. Though farts come out with varying velocities, we don't typically smell them for about 10-15 seconds after letting them rip. This is because it takes that long for the odor to reach your nostrils.
http://www.oddee.com/item_98612.aspx
Dr. Matt Whiteman, a University of Exeter professor who worked on the study, said in a statement that researchers are even replicating the natural gas in a new compound, AP39, to reap its health benefits.
http://theweek.com/speedreads/450160/study-smelling-farts-may-good-health
While hydrogen sulfide gas is harmful in large doses, the study suggests that a whiff here and there has the power to reduce risks of cancer, strokes, heart attacks, arthritis, and dementia by preserving mitochondria, Time reports.
http://theweek.com/speedreads/450160/study-smelling-farts-may-good-health
what's that smell did you fart?
The more sulfur-rich your diet is, the more terrible your farts will smell.