Blood Viscosity and Health

Viscosity is the resistance of a liquid to movement. Think water versus honey, honey being very viscous. Turns out a number of things can make the blood flowing through our bodies more or less viscous.

Some possible causes of increased blood viscosity are dehydration [1], psychological stress [2], cold temperatures [3][4], heat stroke [5], increased hematocrit (serum red blood cell) levels [6], hyperglycemia [7], increased triglycerides and chylomicrons in the blood [8], and perhaps exposure to air pollution [9] and tobacco smoke [10]. Continue reading