You might not expect that bad trip you had in a rave to be of much academic interest.

But bad trips are common, and can result in serious distress or even death.

So some scientists have been trying to figure out what causes them.

And you weren't hallucinating when you saw the title of this video.

They think they've found it.

INTRO

Magic mushrooms, LSD, ecstasy, mescaline…

The compounds in all of these psychedelic drugs may differ, but they tend to produce pretty similar experiences.

Despite the fact that they're illegal and unregulated in many places, this isn't stopping people from using them.

And it sure isn't stopping people from having bad trips in the process.

What do people mean when they say they've had a bad trip?

Psych researchers prefer the term challenging experiences.

And those experiences can come with a whole host of different symptoms.

Increased heart rate, panic, mood changes like sudden anger or sadness, and a scary thing called ego dissolution.

And that last one, also called ego death, is a dramatic alteration of how you perceive yourself.

You sort of lose your sense of self entirely.

While it isn't always negative, ego dissolution and other elements of bad trips have led to some incredibly dangerous experiences, including suicides and accidental deaths.

And a bad trip isn't always over when it's over.

By that I mean people can continue to be negatively affected by psychedelics long after the drugs should have worn off.

In one study, almost 9% of participants reported having bad trips that led to functional impairments for more than a day.

In another study, users reported increased levels of anxiety, struggles with social interactions, problems thinking clearly, and other difficulties for weeks to years following the use of psychedelics.

Bad trips are fairly common, too.

One study found that about 40% of their participants who used psychedelics had experienced one at some point.

So the big question is, why do these things happen to some people and not others?

There are a number of factors involved, and not all of them have been fully determined.

But it won't surprise you to learn that neurotransmitters are at least part of the answer.

The most famous neurotransmitter associated with psychedelics is serotonin.

That's the one that's often associated with happiness.

You'll see a lot of people mention getting a boost of serotonin from endlessly scrolling for memes.

It's me.

I'm people.

Psychedelic drugs trigger the serotonin receptors in your brain, which are involved with mood and memory.

That may be partly responsible for the high experience by many people who take these drugs.

But recently, studies have shown that a less famous neurotransmitter is correlated with bad trips.

Glutamate.

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Let's be clear, glutamate is pretty much everywhere in your brain.

It's an excitatory neurotransmitter.

It's like an on-switch, meaning it triggers various activities in your central nervous system.

So just having a lot of it doesn't tell us much.

But one study looked at the level of glutamate in a specific part of the brain after using psychedelics.

The study gathered people who had previous experience with the drugs and gave half of them a psychedelic and the other half a placebo.

Each participant got an MRI scan when the drug effects were believed to be at their peak.

In the scans with the experience of the participants, the researchers found that people who had higher levels of glutamate in the medial prefrontal cortex were more likely to experience negative ego disillusion.

Now, the brain has created some complex and confusing words to describe itself.

So let's briefly break down what the medial prefrontal cortex is.

Believe it or not, it's right at the front of your brain, in your frontal lobe.

And the medial prefrontal cortex is involved with emotional regulation, among other things.

Those elevated glutamate levels in this region were strong predictors of increased levels of anxiety in the participants, because glutamate controls behaviors associated with stress.

Basically, it turned on that anxiety.

So that may have contributed to their bad trips.

I know there are evolutionary benefits to stress and anxiety, but sometimes I really wish they didn't have an on switch.

There are also non-brain chemistry factors that may contribute to someone's likelihood of having a bad trip.

Researchers suggest that high dosages may lead to them.

If too much of a good thing is bad, too much of an illegal and unregulated substance probably isn't great either.

People who study this also emphasize the importance of set and setting.

Set being the person's mood and mental state, setting being the physical environment in which someone is taking the drug.

Basically, if you're going to take psychedelics, the general recommendation is to be in a generally positive state of mind and a safe place.

Now, are bad trips really all that bad?

Yes, absolutely, they are terrifying and dangerous.

But that's not to say it's impossible to pull something valuable from said terrifying and dangerous experience.

Some people have reported bad trips opening their minds to things they have repressed, allowing them to work through those challenges.

Others report that ego dissolution provided them the opportunity to look at themselves from a different perspective, giving them the space to make positive change in themselves and their mental state.

Those are the kinds of experiences that are believed to make psychedelics useful for therapeutic purposes.

They're being studied as treatments for disorders such as depression, anxiety, addiction, and post-traumatic stress disorder.

It's incredibly important to recognize the risks involved with the use of psychedelic drugs.

But we're making progress on our journey to understanding these chemicals and our own brains, and that's not such a bad trip to be on.