Low concentrations of HDL (below 40 mg/dL for men, below 50 mg/dL for women) increase the risk for atherosclerotic diseases. Data from the landmark Framingham Heart Study showed that, for a given level of LDL, the risk of heart disease increases 10-fold as the HDL varies from high to low.
evacuation. 1  the act or process of evacuating, or the condition of being evacuated; discharge or expulsion, as of contents. 2  Physiology. discharge, as of waste matter through the excretory passages, especially from the bowels. 3  something evacuated or discharged. 4  the removal of persons or things from an endangered area.
The evacuation of districts is part of disaster management. Many of the largest evacuations have been in the face of war-time military attacks. Modern large scale evacuations are usually the result of natural disasters. The largest peace-time evacuations in the United States to date occurred during Hurricane Gustav and the category-5 Hurricane Rita (2005) in a scare one month after the flood-deaths of Hurricane Katrina.