Sec. 156. Old Men who often expose themselves imprudently to the Sun, are little apprized of all the Danger they incur by it. A certain Person, who purposely sunned himself for a considerable Time, in the clear Day of an intermitting tertian Fever, underwent the Assault of an Apoplexy, which carried him off the following Day. And even when the Disease may not be so speedy and violent, yet this Custom (of sunning in hot Weather) certainly disposes to an Apoplexy, and to Disorders of the Head. One of the slightest Effects of much solar Heat upon the Head is, to cause a Defluxion from the Brain, a Swelling of the Glands of the Neck, and a Dryness of the Eyes, which sometimes continues for a considerable Term after it. Sec. 157. The effect of too much culinary, or common Fire, is of the same Quality with that of the Sun. A Man who fell asleep with his Head directly opposite, and probably, very near to the Fire, went off in an Apoplexy, during his Nap. Sec. 158. The Action of too violent a Sun is not only pernicious, when it falls upon the Head; but it is also hurtful to other Parts; and those who continue long exposed to it, though their Heads should not be affected, experience violent Pains, a disagreeable Sensation of Heat, and a considerable Stiffness in the Parts that have been, in some Manner, parched by it; as in the Legs, the Knees, the Thighs, Reins and Arms; and sometimes they prove feverish. Sec. 159. In contemplating the Case of a Patient, _Sun-struck_, as we may term it, we must endeavour to distinguish, whether there may not be also some other joint Causes concurring to the Effect. A Traveller, a labouring Man, is often as much affected by the Fatigue of his Journey, or of his Labour, as he is by the Influence of solar Heat. Sec. 160. It is necessary to set about the Cure of this Disease, as soon as ever we are satisfied of its Existence: for such as might have been easily preserved by an early Application, are considerably endangered by a Neglect of it. The Method of treating this is very much the same, with that of the inflammatory Diseases already mentioned; that is, by Bleeding, and cooling Medicines of various Kinds in their Drinks, by Bathings, and by Glysters. And 1. If the Disease be very high and urgent, a large Quantity of Blood should be taken away, and occasionally repeated. _Lewis_ the XIV. was bled nine Times to prevent the Fatality of a Stroke of the Sun, which he received in Hunting in 1658.