Excessive venery and monkish seclusion

Excessive venery, and the profuse and unnatural expenditure of the seminal fluid, may be enumerated among the acquired predisposing causes of insanity. However unable we may be to explain the action of inordinate sensual gratification, and of the banefulband detestable habit of monkish seclusion, in producing those effects which occassion the predisposition in question, they are the most prolific source of diseased intellect, and often induce that species of madness which resists the most judicious curative attempts, so that both mind and body fall sacrifice; the first losing all its faculties in idiotism, and the last all its locomotive powers in palsy.

C***
Practical Observations on Insanity, p. 26.