(1) if you are born into a family with hearing loss (2) being around big tools all the time without ear protection (3) if something breaks your eardrum. A way to prevent ear injury is to wear ear plugs when appropriate and make sure to take care of them.
It helps build strong bones which minimises the risk of fracture.
The function of the stomach is to churn and turn the food into a liquid called chyme.
The stomach also releases pepsinogen and hydrochloric acid which mixes to produce pepsin.
Pepsin emulsifies protein and then the contents move through the pyloric sphyncter and into the small intestine for further breakdown and digestion