Your mouth, nose, throat, sinuses and lungs are lined with mucus membranes. These membranes contain mucus glands that produce - surprise - mucus. Mucus-producing membranes line specific passages in your body, like the respiratory and digestive tracts, for protection and support.
Lol id say all above but................its more difficult 2 exercise with all that weight pullin you donw.
Answer:
I think that Reliable website, such as CDC.gov could give you importaint information about what you need to know about anything in the government and what the government. But at the same time, it could also be bad because they could bias and you want a nonbias website so that you can get information not just from one side.
But another one could be hospitals because you could ask the workers that work there what they think about your questions and get a couple peoples answers to get enough research.
Where is the choices????????????????
