[odyssey7]

It is considered not definitive, given the sample size of 1, confirmation bias, amped-up placebo effect, lack of oversight, conflict of interest when the patient is the investigator… but you’re usually allowed to do what you want with your own body.

[card_zero]

The relevant Wikipedia page says all that too, but then confuses matters by listing about 50 notable examples.

https://en.wikipedia.org/wiki/Self-experimentation_in_medici...

[odyssey7]

Not definitive ≠ useless