I’ve written previously about how Paul Ingraham helped cure my patello-femoral pain syndrome.
More recently, Paul looked into hiccup cures because his father had an intractable case. What finally worked for dad? Breathing into a plastic bag.
Boosting blood CO2 (hypercapnia) by breathing in a PLASTIC bag. This one is quite plausible and is easy and safe to try. Hypercapnia definitely affects some kinds of hiccups. The story (from a smart source, a good “friend of PainSci”): “There’s an even easier way out of hiccups — at zero cost. Learned it from my uncle,