Marijuana Myths: Are Red Eyes A Consequence Vasodilation? – Medical Marijuana Program Connection

This article was originally published on The Fresh Toast and appears here with permission.

The vasodilating effects of cannabis are one of the physiological responses of the body that have been investigated. Here’s why it happens.

At some point, you must have experienced a bloated face, red and puffy eyes, as well as dehydrated skin after smoking. Have you ever stopped to think and ask yourself why this happens whenever you smoke? Does using weed cause vasodilation? The answer is maybe.

What Is Vasodilation?

Vasodilation is a mechanism to enhance blood flow to areas of the body that are lacking oxygen and/or nutrients. The vasodilation causes a decrease in systemic vascular resistance (SVR) and an increase in blood flow, resulting in a reduction of blood pressure.

The word “vasodilation” is used to describe the opening up of the body’s blood vessels.

It is the opposite of “vasoconstriction” where the blood vessels close up within the body. It is a temporary situation. It occurs naturally in your body in response to triggers such as low oxygen levels, a decrease in available nutrients, and increases in temperature. It causes the widening of your blood vessels, which in turn increases blood flow and lowers blood pressure.

Consuming marijuana could bring about vasodilation. When using cannabis, blood flow to some parts of the body is restricted or reduced. Oxygen transportation is also slowed down and not delivered as promptly.  While not dangerous, vasodilation can…