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.
Dehydration due to inadequate fluid intake, excessive loss of fluids or consumption of too much alcohol or caffeine can cause saliva to taste salty, explains Riverside Health System. Chemotherapy drugs and thyroid medications can cause a salty taste in the mouth as a side effect.