That's the kind of inference that allows these claims to proliferate.
This article makes a lot of claims about I.Q. scores before and after holding breath (specifically underwater, for some reason), but there are no links to studies, no mention of who or how many people participated, etc.
Not defending the overall claim, but there's a plausible reason why being underwater matters: the mammalian diving reflex. Holding your breath on land is not the same.
This article makes a lot of claims about I.Q. scores before and after holding breath (specifically underwater, for some reason), but there are no links to studies, no mention of who or how many people participated, etc.
This is the definition of a baseless claim.