HumansEarliest use of anaesthetics uncovered in Chinese doctor’s tomb Residues on medical equipment reveal that physicians in China over 600 years ago used aconitine, a highly toxic plant chemical, to alleviate pain during surgical procedures ¿ìè¶ÌÊÓÆµ
LifeWhy did magic mushrooms evolve? We may finally have the answer Many species of fungus across the world produce psilocybin, a chemical with psychedelic effects in humans, but its evolutionary purpose may be to deter mushroom-munching insects ¿ìè¶ÌÊÓÆµ