Smoking once smoked can change a teen's brain forever, said the study


Smoking marijuana can once change a teen's brain forever, new research shows.

This substance can radically change the structure of the brain, scientists at a university in Australia believe.

They claim there are clear differences in brain scans between teenagers who have taken the drug several times and those who have never tried it.

Who is behind this research?

Swinburne University of Technology in Melbourne, Australia, is behind the research.

They concluded that changes might occur during the early stages of cannabis use.

Catherine Orr, who led the study, acknowledged her surprise at the "level of impact".

In total, 46 children aged 14 years – all of whom claimed to have used this substance once or twice – were analyzed.

Police raided the apartment and found four young people sitting for £ 800

And 46 teenagers who had never used drugs were also part of the study.

"In our sample of marijuana users, greater volume in the affected part of the brain was associated with a decrease in psychomotor speed and perceptual reasoning and with an increase in anxiety levels two years later," said Orr.

When you smoke a cigarette, the active chemical Tetrahydrocannabinol (THC) spreads throughout your body and affects your brain.

Cannabis stays in the system longer than most other drugs and can still be detected in urine, blood and hair for up to 90 days afterwards.


Cannabis disrupts the way your brain processes information.

It contains at least 60 types of cannabinoids, chemical compounds that work on receptors throughout our brain.

This makes the neurons light up, enlarges your mind, imagination and perception, and makes you feel high by increasing your dopamine levels.

But having too much makes you anxious, paranoid, or panic.

Like other drugs, continuous use can cause addiction.


Only a few minutes after you take the first puff, your heart rate increases by 20 to 50 times per minute.

Marijuana factory

This can continue from 20 minutes to three hours later.


Marijuana makes the blood vessels expand and makes your eyes flush.

This can also make your child's pupils widen.

Weed also affects the part of your brain that processes what you see, leading to hallucinations.


People who smoke weeds get "snacks" and feel very hungry.

A study that examined the effect of pots in mice found this drug basically flipped a switch in the brain that is usually responsible for controlling appetite.

Long-term effects

Chronic marijuana users, who light up at least three times a day, tend to have a smaller volume of gray matter in the orbitofrontal cortex – which is not surprising is the part of the brain that is bound to addiction.

But what's interesting is that marijuana use is also associated with greater connectivity in the brain.

There is evidence to suggest that the drug can help fight Alzheimer's and dispel the myth that smoking weeds lowers IQ.


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