Another cause is much resting, and avoiding customary exercise, coition on the top of much food: hence Galen says
p.327eunuchs786 do not suffer from podagra, neither do they become bald. And it is proved that doing this is a great cause of this disease, for podagra does not seize youths, until they reach the age of manhood. Another cause thereof is the retention of those superfluities that are wont to be expelled, such as, the catamenia in the case of women, and flux, and avoiding wonted bloodletting. Amongst its causes are running or jumping, excessive horse-riding, or violent walking after repletion, and much wine on an empty stomach, for Avicenna says that that injures the nerves.