Snoring refers to the sound that is made by some people while sleeping. Some people might snore loudly while others make slower and softer sounds. Snoring is a result of the vibration of the soft tissues in the upper airways. This also includes the nose and the throat. When a person breathes in, he draws some air inside and this air causes the vibrations and the snoring sound. Most people have snored at sometimes due to different reasons. However, there are some people who snore habitually. There are certain causes of snoring. The most common amongst them is a presence of a partial obstruction in the throat or nose. This makes it difficult for the air to move in the passage, causing turbulence leading to vibrations and the snoring sound. As the person suffering from snoring does not get a good sleep while his body also compromises on the oxygen levels, snoring leads to irritability and lethargy.