It has been generally said, that we should keep our Heads cool; and many on that Principle, even tho’ their Heads are shaved, lie without a Night-cap. I will not take upon me to determine the Matter, but observe, that the Night-air seems to require some Guard; and many are of Opinion, that lying with the Head warm is most healthful; and particularly good for the Hair, the Eyes, and the Teeth. Another Observation I shall here make, is, the Error of sleeping in small Rooms, and by Choice in the lower Part of a House; it is certainly right that we should have Space for a due Circulation of Air that it may not become thick and foul, which is very common in close Bed-chambers; nor should we lie surrounded with Curtains, for that is confining ourselves to the Air within the small Compass of our Beds. Parents would do well to let Children lie with the Curtains undrawn; and even where they have tender Constitutions, drawn only at the Sides of the Bed; but never all round, unless really sick: for this Practice, however common, is highly erroneous. Notwithstanding the general Rules laid down concerning Exercise, I must here observe, that as Children advance in Life, that is, when they approach to Men and Women, great Regard should be had to the Exercise suitable to their Circumstances and Constitution; but these are too many to admit of enlarging upon here. I will in brief observe, that those who are hale receive the greatest Advantage from walking; the tender, especially the Hectical, and those who have weak Nerves, cannot bear this Exercise to any Degree, but gain Strength and Vigor from riding on Horseback; and indeed it often happens, where walking cannot be borne without great Fatigue, and waste of Strength and Spirits, riding, on the contrary, not only gives Pleasure, but increases both. Where Infirmity is so great, which doubtless will sometimes happen, that neither of these Exercises can be pursued, then a Coach, or some ether Vehicle, should supply their Place; for it is of great Consequence not totally to disuse Exercise: but Parents must remember this is too indolent in a State of Health; and is not by any Means to be encouraged by Choice. Besides these, there are many others under the Name of Sports and Pastimes, which if well regulated, and Care be taken that those engaged in them do not injudiciously drink cold Liquors, or otherwise expose themselves to inclement Seasons, are very salutary; such as Fencing, Dancing, Bowling, Digging, Gardening, and many others; all in their Nature good, and at times not to be shunned, especially by those whose Life would otherwise be inactive, those particularly who are devoted to Study.