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.
National Geographic. End of the World: Evacuate Earth. What would we do if the Earth were about to be destroyed? EVACUATE EARTH examines this terrifying and scientifically plausible scenario by exploring the technologies we would devise to carry as many humans as possible to safety.