Thick blood?

Question

Is it true that your blood thickens when you live in a colder climate? Is this just a saying or an old wive's tale?

Answer 1

The viscosity (thickness) of blood,or any liquid for that matter, is controlled by both the chemical structure of its constituent components and temperature. Independent
of chemical structure, however, temperature is the primary
environmental factor (though ambient pressure may play some role in affecting the viscosity of compressible liquids, as well). Our every day experience with liquids tells us that they become more viscous (thicker) with a decrease in temperature and less viscous(thinner) with an increase in temperature. These temperature induced changes in
viscosity are attributable to the way molecules in the liquid react to a gain or loss of thermal energy (heat). When thermal energy from the environment is “absorbed” by the liquid, the molecules that comprise the liquid begin to move at higher velocities, and thus engage in higher energy collisions with one another and their
surroundings. For these reasons, that is a fact, and not just a saying.

Answer 2

yeah

Answer 3

i think it is true