Why Does Marijuana Make Some People Faint?

By, The Fresh Toast on

Published in Cannabis Daily

While fainting from marijuana is not uncommon, it becomes worrisome when it becomes a pattern.

Posted by Chiara C via

Marijuana offers many benefits to users, such as pain relief and relief from anxiety. Like other medicines in use today, there are cases where individuals have experienced a negative feeling after taking the herb, and fainting is one such side effect.

The faint, dizzy spell comes over you unexpectedly as one minute you are at this fun party with friends feeling the music, and the next minute you can’t feel your legs anymore. In some other cases, maybe you felt like you were going to vomit with your senses going haywire, and you struggle to catch your breath, wondering what was added to the marijuana as these thoughts run through your mind.

Everything goes black! 

You open your eyes, and you are told you fainted after taking a drag from your joint: but you are perplexed because you have done this different times with your friends. Not everyone experiences this with marijuana, as while some people can use it without experiencing dizzy spells, some others have frequent fainting episodes. Some of the reasons for fainting includes: As a side effect  Fainting is a side effect of marijuana that affects some people. Medical experts maintain that blackouts occur when tetrahydrocannabinol (THC), the cannabinoid that releases the herb’s stoned impact, expands the blood vessels, thus decreasing the blood pressure. The heart rate increases, and the person loses consciousness. The mode of consumption Another cause for fainting spells after taking marijuana is the mode of consumption. While someone may not faint by taking marijuana as a joint or through a vaporizer, the same person may experience side effects when marijuana is taken from a bong. Marijuana users must pay attention to how they feel when taking it through varying means to observe which one affects them and which method doesn’t affect them. Photo by Grav via UnsplashSmoking weed while standing  More so, fainting also happens sometimes when a person smokes weed while standing, so if you always experience fainting spells, you probably should sit down or stay closer to the ground. But please note that fainting from marijuana intake is not ‘Dangerous”; the person will recover and be fine; the only concern would be to avoid hitting the head on the floor. Using impure marijuana  After taking marijuana, fainting is sometimes attributed to seizures caused body’s reaction to certain chemicals infused into the marijuana. An individual may not be aware of the ingredients used in the joint, and if toxic chemicals are added, this can create a disturbing reaction within the body, leading to fainting spells. Vasodilation  Marijuana sometimes causes vasodilation, which is when the blood vessels dilate and make the brain miss out on oxygen, thus leading to a blackout. Vasodilation is a natural occurrence and even has beneficial effects sometimes, but when it happens under the influence of marijuana, it can cause the person to blackout.


So how can a marijuana user tell that they’re about to faint and hit the floor? Here are a few signs:

If you feel dizzy after a hit, you are about to faint, so it is advised you find somewhere to avoid falling down. 

If you experience shortness of breath just after inhaling marijuana, then it is a sign. 

A pounding heart rate is a sign that you should slow down from the marijuana intake. If you don’t slow down, it can degenerate into chest pains. 


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