great is the power of the Air: For when a Man is up, his Body is cool, and the pure Spirits and thin moist Vapours of the Air have power to penetrate the Body; which Element the Body sucks in like a Spunge thorow the Pores; and this does not only cool and refresh the Spirits, and the whole Body, but also powerfully strengthens the Action of the Stomach. But I pity the young Children most, who are so tender, and of so delicate a Nature, both in their Body and Spirits, that every Disorder does wound them to the very Heart. Nothing is more grateful and refreshing to them, than the pleasant Air: It comforts their Spirits, and causeth a free Circulation of the Blood and Radical Moisture, begets Appetite, and makes them grow in Strength: But, on the contrary, hot sulphurous Airs, with great Fires, and warm Clothing, do not only hinder the Circulation of the Blood, but suffocate the Spirits, and destroy the Appetite, causing an unnatural Heat to possess the whole Body; whence does proceed various Disorders and Diseases, making them to cry, and be very forward. Also close Bindings, and over-warm Clothings, and thick hot Airs, do oft in weak-spirited Children cause Convulsions, Vapours, and Fumes to fly into the Head, sometimes occasioning Vomiting, which People call Windy Diseases. Again, The Food of most Children, of late Years, is so enriched with _West_ and _East-India_ Ingredients, that is, with Sugar and Spices, that thereby their Food becomes so hot in operation, that it does not only breed too much Nourishment, which generates Obstructions and Stoppages, but it heats the Body, drying up and consuming the Radical Moisture, and infecting the Blood with a sharp fretting Humour, which in some Complexions and Constitutions causeth Languishing Diseases, contracting the Breast and Vessels of the Stomach, and hindering the Passages of the Spirits, so that the Joynts and Nerves become weak and feeble: in others, with the help of bad Diet, and other Uncleanliness, does cause Botches, Boils, and various sorts of Leprous Diseases. Also many that have wherewithal, will frequently give their Children Sack, strong Drinks, and fat Meats, as long as they will eat, which is abominable, and absolutely contrary to the Nature of Children.