F. Matthias Alexander developed an ability that avoided what negative bodily issue?
Alexander Technique The Alexander Technique (A.T.), named after Frederick Matthias Alexander, is an educational process that attempts to develop the ability to avoid unnecessary muscular tension by retraining physical movement reactions. Alexander believed the individual's spatial self-awareness was related to psychological conditioning; questionably trained foundation habits of posture can be unsuitably added into procedural skills. Alexander observed that those whose goals justified it necessary to have trained themselves to overcompensate could not trust their judgment of physical orientation and required effort, (their "sensory appreciation.").
Apotropaic magic Apotropaic magic (from Greek "apotrepein" "to ward off" from "apo-" "away" and "trepein" "to turn") is a type of magic intended to turn away harm or evil influences, as in deflecting misfortune or averting the evil eye. Apotropaic observances may also be practiced out of vague superstition or out of tradition, as in good luck charm (perhaps some token on a charm bracelet), amulets, or gestures such as crossed fingers or knocking on wood. The Greeks made offerings to the averting gods (Ἀποτρόπαιοι θεοί: "Apotropaioi Theoi"), chthonic deities and heroes who grant safety and deflect evil.