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.
2a : to cause evacuation from (as the bowels)b (1) : to make free of something unwanted purge a manhole of gas purge yourself of fear (2) : to free (as a boiler) of sediment or relieve (as a steam pipe) of trapped air by bleedingc (1) : to rid (as a nation or party) by a purge (2) : to get rid of the leaders had been purged.