From the pinna to the tympanic membrane, sound is increased by 5 to 15 decibels (dB) in the 2,000 to 4,000 Hertz (Hz) range due to the resonance of the auditory canal. The human ear is most sensitive to sound within this range and most vulnerable to damage from noises that are too loud.
When you knead dough, you help two proteins in wheat flour, gliadin and glutenin, form gluten. But flour also contains many other componentsâstarch, lipids, sugars, and enzymesâthat contribute to the consistency and nutritional value of bread.
Gluten is a protein found in many grains, including wheat, rye and barley. It's found in most breads, cereals, pastas and many processed foods, according to WebMD. People who havea condition calledceliac disease develop an immune reaction to gluten that damages the intestine, and so they need to avoid the protein.