https://pubmed.ncbi.nlm.nih.gov/17409179/
The thought that young children are using these suggest they’ll suffer issues in their mid twenties which is horrifying, and then the issues could get worse throughout their life.
https://pubmed.ncbi.nlm.nih.gov/17409179/
The thought that young children are using these suggest they’ll suffer issues in their mid twenties which is horrifying, and then the issues could get worse throughout their life.
Thats basically no evidence at all. Case control studies are mostly used to see if there might be some correlation and from that to form a hypothesis for further research.