Abstraction: when applied to dance, this word refers to choreography that does not have a narrative character. In other words, an abstract dance does not tell a story, nor is related to symbolic contents or any kind of associations with feelings, ideas or other elements than movement itself.
Facts about asthma. 1  WHO estimates that 235 million people currently suffer from asthma. 2  Asthma is a public health problem not just for high-income countries; it occurs in all countries regardless of the level of development. 3  Asthma is under-diagnosed and under-treated.
This videoâpresented by the National Heart, Lung, and Blood Institute, part of the National Institutes of Healthâdescribes asthma, its signs and symptoms, and ways to manage the disease. Asthma is a chronic lung disease that inflames and narrows the airways, making it hard to breathe. The disease affects people of all ages, but it most often starts in childhood. People who have asthma may wheeze, cough, feel short of breath, or have chest tightness.