Flatulence, or passing gas, is a natural part of the digestive process for both men and women. It's primarily caused by the fermentation of undigested food in the large intestine, producing gases like carbon dioxide, methane, and hydrogen sulfide. Certain foods, such as beans, broccoli, and dairy products, are known to increase gas production. While it's not possible to directly *make* someone fart, understanding the science behind gas can help you appreciate this normal bodily function.