Chronic obstructive pulmonary disease (COPD) is a progressive lung disease that makes it difficult to breathe. The term COPD comprises several diseases the two most prevalent being emphysema and chronic bronchitis. Most people diagnosed with COPD have a combination of both. One of the most common symptoms of COPD is a chronic cough and excess mucus production. This chronic cough can lead to tightness of the chest, wheezing, and shortness of breath.
It's Friday the 13th everyone! Don't walk under any ladders and if you spill the salt, be sure to throw it over your left shoulder. Where do these superstitions come from?
Many come from Early Christianity