D. Ecstasy. MDMA is the pure form of ecstasy.
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.
Answer:
Buena postura: mantiene los huesos y las articulaciones en la alineación correcta para que los músculos se usen correctamente. Ayuda a disminuir el desgaste anormal de las superficies articulares. ... Previene la fatiga porque los músculos se usan de manera más eficiente, lo que permite que el cuerpo use menos energía.
Explanation:
Espero que esto ayude.
