Grimes has been diagnosed with autism and attention deficit hyperactivity disorder (ADHD).

The 37-year-old star has taken to social media to discuss her personal experiences of the conditions and to react to a meme suggesting that "excessive reading" during childhood is an indicator of ADHD.

Grimes wrote on X: "I have to say, there's this subculture of I guess "mental health" accounts that I actually think are like, extreme infohazards.

"Got diagnosed w adhd/ autism this year and realized I'm prob dyslexic which is why I can't spell at all without spellcheck - I feel like, had we known this when I was a child I would have worked so much less hard, been on drugs, and so many of the weird obsessions and motivations I had would have been seen as pathological and I could have written off certain things that were very hard for me but I'm glad I over came them. Prob wud have been drugged too

"Not only can mental illnesses be contagious (in school when we were learning abt various mental illnesses me and a lot of other students noticed we would like start getting symptoms of them during those units - that wud go away once we finished)

"But ppl r self diagnosing. And also I feel a huge percentage of adhd is screen addiction and dopaminergic burn out. (sic)"

Grimes noted that her ADHD symptoms were "infinitely worse when [she] wasn't an avid reader".

The singer continued: "An adhd account trying to pathologize one of the best things a child can do to help with adhd (and also become an auto didact and knowledgeable person etc etc) is so dark.... I can't even begin

"I think the nature of this uninformed social media mental health subculture is rly a big concern. Some are great ofc but a lot of these seem like explicitly anti civilizational and geared towards making people worse (sic)"