Answer:
You can think of Free radicals as some exhaust from a combustion engine. Get this picture: If an engine is running, it is throwing off some exhaust. Also, if you want to compare this to other things, you can compare it to the human body, as you digest food, breathe, and as you exercise you're producing free radicals. Just by simply living, you are producing them every single second of your life.
Explanation:
COPD, or Chronic Obstructive Pulmonary Disease, pretty much says it all. In COPD the Bronchioles (the pathways of air to the Aveoli), become inflamed and are occluded by mucus, because the Cilia which are responsible for pushing it out of the tract have been damaged. Because of the narrowing, the Aveoli attempt to increase the surface area so that more oxygen can be absorbed by the lungs, however this can lead to a problem as the dead space (space that is not the aveoli and can be absorbed) is then expanded as well, which leads to shortness of breath.
All of them, tbh. But mostly A. C. and D. Juice and soda are unhealthy if you don't drink them within reason.
Answer:
The IgE antibodies bind to mast cells. The allergen cross-links them. This triggers the mast cells to release powerful chemicals like histamines. Histamines cause the allergic symptoms like itching and runny nose. If you are allergic to pollen, your body will produce a large amount of allergen-specific IgE antibodies when you come in contact with pollen. The IgE antibodies bind to mast cells. The allergen cross-links them. This triggers the mast cells to release powerful chemicals like histamines.