To sit long in one posture, poring over a book, or driving a quill, is in itself a taxing of nature; but add to this a badly-ventilated chamber, a body which has long been without muscular exercise, and a heart burdened with many cares, and we have all the elements for preparing a seething cauldron of despair, especially in the dim months of fog.
Author: Charles Spurgeon Source: The Minister's Fainting Fits, Lectures to My Students, Lecture XI, 1856.
Health is a good thing; but sickness is far better, if it leads us to God.