In 1945, when Allied forces liberated the concentration camps at Dachau, Bergen-Belsen, Buchenwald, Sachsenhausen, Auschwitz and elsewhere, the world was shocked at the sight of images of dead bodies alongside half-dead people in these camps.
Emphysema results when the delicate linings of the air sacs in the lungs become damaged beyond repair. Most commonly, the toxins in cigarette smoke create the damage. The lung changes of emphysema evolve slowly over years: 1  As the fragile tissues between air sacs are destroyed, air pockets in the lungs develop. 2  Air becomes trapped in these spaces of damaged lung tissue. 3  The lungs slowly enlarge, and breathing requires more effort.
A Honor Society of Nursing (STTI) answered. Asthma affects the body by limiting the flow of air into the lungs. When certain substances trigger an asthma attack, cholinergic receptors in the airways respond by tightening the muscles.This process is called bronchoconstriction.It triggers a sequence of reactions in the body, which contributes to increased inflammation and mucus secretions. An asthma attack -- or an asthma exacerbation -- can be very frightening. You may cough, have difficulty breathing, or feel a shortness of breath.As you breathe out, you may hear a wheezing or whistling sound which may go away if your airway becomes more constricted.n asthma attack -- or an asthma exacerbation -- can be very frightening. You may cough, have difficulty breathing, or feel a shortness of breath. As you breathe out, you may hear a wheezing or whistling sound which may go away if your airway becomes more constricted.