Serum creatine kinase levels (CK) can vary among healthy subjects, even when correcting for muscle mass. Age, gender, race, and physical activity can affect CK. CK is higher among black males, as well as newborns.Moreover, CK reference ranges are varied with different assays and reference temperatures.
4. Avoid eating fried foods: Fried foods are oily in nature and oil is a well-known cough trigger. Deep-frying foods in hot oil generates a compound called acrolein, which acts as an allergen that aggravates coughing and causes throat itching. So, itâs best to avoid oily, fried foods while you have a cough. 5. Avoid smoking: Smoking is one of the causes of a cough due to bronchitis.
A 2005 study from the American Journal of Respiratory and Critical Care Medicine found that people who consume starchy foods, salty foods and fatty meats were about 1.4 times more likely to have a cough with phlegm than those who stuck to fruit and soy products.