Hydrochloric acid enzyme pepsin by self-cleavage. After leaving the stomach, the hydrochloric acid of the chyme is neutralized in the duodenum by sodium bicarbonate. The stomach itself is protected from the strong acid by the secretion of a thick mucus layer, and by secretin induced buffering with sodium bicarbonate. Heartburn or peptic ulcers can develop when these mechanisms fail. Drugs of the antihistaminic and proton pump inhibitor classes can inhibit the production of acid in the stomach, and antacids are used to neutralize excessive existing acid. Concentrated hydrochloric acid (fuming hydrochloric acid) forms acidic mists. Both the mist and the solution have
Break Down Here vehicle to break down, and she does not want to break down and cry ("I've made it this far without crying a single tear"). A music video was released for the song, directed by Steven Goldmann. Kelefa Sanneh of "The New York Times" described the song favorably, calling it "one of the year's best country ballads" and "an aching but resolute lament". The following musicians performed on this track: "Break Down Here" spent a total of 32 weeks on the country charts, peaking at 18 in September 2004. It is Roberts' only Top 40 hit on that chart. The song