Here’s a fascinating look at what happens inside your body during a severe asthma attack — and what the symptoms may look like from the outside.
asthma,health,lungs,severe asthma,asthma attack
What exactly is bronchitis? And it is contagious? Learn more: http://wb.md/2gmnoJt
Subscribe to WebMD here: https://www.youtube.com/user/WebMD
Follow WebMD here:
WebMD,health,bronchitis,the basics,cough,what is bronchitis,how to treat bronchitis,symptoms of bronchitis,bronchitis symptoms,bronchitis treatments,wheeze,is bronchitis contagious,breathing problem,cold,flu,lungs