Anvil therapy

From Mind Hacks, a description of a folk remedy for depression, probably from the 16th or 17th century:

“The patient laid on the anvil with his face uppermost, the smith takes a big hammer in both his hands, and making his face all grimace, he approaches his patient; and then drawing his hammer from the ground as if to hit him with full strength on his forehead, he ends in a feint, else he would be sure to cure the patient of all diseases; but the smith being accustomed to the performance, has a dexterity of managing his hammer with discretion; though at the same time he must do it so as to strike terror in the patient; and this they say, has always the desired effect.”

…Bringing a sledge hammer to work tomorrow.