Corpus of Electronic Texts Edition
Rosa Anglica (Author: [unknown])
section 14
14
These are the external causes: violent walking, falling, beating (percussion), sitting long in an over-cold spot, compression of long standing, and custom of overheavy loads790 and other similar things, the which turn the force to weakness, such as anger and want of sleep. It is a cause thereof when the excess of the second digestion or the third remains in the
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body, until expelled. Age (too) helps in generating this sickness, for old folk are more susceptible to it, than the young. Another cause is weakness of the digestion, for when folk arise from a long sickness (are convalescing), they make the error in regimen, also when the disease is checked before enough has been evacuated; for people whose forces are weak on account of long sickness are wont to fall into this disease.791