Are you aware that 7500 years ago ayurveda didn’t use anesthetics or chloroform before a surgery . However all complex surgeries like heart , plastic , oncology and even brain surgeries were performed . They used to temporarily paralyze the patient and render them unconscious . Feel free to check the YouTube link to see the live demonstration of a marma expert doing this to a goat . The same procedure was done to humans . Best part it’s not only painless but doesn’t affect your health with those dangerous chemicals used for anesthesia . https://youtu.be/uvG_WtRvvOk
( this is an example the same way the petrochemical medicines you take are all tried on rats ) .