Use of e-cigarettes makes it more likely that young people will experience mental-health disorders and take up smoking. Governments must act.

...

... we were surprised by the extent to which vaping in young people is associated with poorer mental health.

See how the prominent headline is contradicted by the actually important fact later in the article? See how they're calling for the state to enforce this unscientific nonsense?

This is a regular occurrence for this "science" publication. It's a real shame when the largest websites are just clickbait pseudo-science trash.

The issue is IMO really the underlying casual model. What causes what?

In the first sentence, it sounds as if vaping causes worse mental health. But later it is stated more softly as a statistical association, i.e. not causal, which is really hard to show on real world data.

My hypotheses would be that there is an underlying condition that affects both vaping and mental health, namely social deprivation.

It's disappointing from a premier scientific publisher, but very, very common mistake when interpreting statistics.

Found the vape shill.