To be absolutely brutal and honest with you, nobody cares about I look forward to hearing from you.. The practical reason is that it's one of the various standard and conventionally polite ways to end the body of the letter. It's just a standard exit.
1 In some cases, liver failure causes this taste to occur. 2  Gastroesophogal reflux disease can cause the salty taste (even when no pain is present). 3  Some medicines can make everything taste odd. for example the drug enalapril, which is a drug used to prevent heart failure.
Additionally, an excessively salty taste in the mouth can be attributed to an increase in the saliva salt concentration or to an increased sensitivity of taste buds to salt which in turn may be due to the following reasons: 1  Medications side-effects:~400 medications may cause alterations in taste sensation. 2  Dehydration.