1. The first kinde of _running_ which beareth his name of the verie motion vehement swift, and withall outright, hindereth health, rather then helpeth it: and if it helpe it any waye, it is in that it abateth the fleshinesse, and corpulence of the body: which if it chaunce to be moyst, swift running will empty it of humours, and stay it also quickly. It hath bene found so wholesome in some diseases of the splene or mylt, as _Ætius_ a learned Physician writeth, that he knew some which by walking and running onely were deliuered from all greife and peine there. But it is verie vnwholesome for such as haue ill heades. Whervpon _Aristotle_[29] in his Problemes, asking the question why running which is thought to driue all excrementes downward, if it be vehement and swift should be offensiue to the head, not in men and wymen alone, but also in beastes, aunswereth thus: that the swift motion, bycause it strayneth the strength, and stayeth the breath, heates the head with all, and swelles the veines therein: so that they draw vnto them forreine meane as cold or heat: and besides that, it enforceth what so euer is in the breast to ascend vpwarde, whereby the head cannot chuse but ake, which is the cause, that swift running is naught for the falling euill. _Galene_[30] thinketh so basely of this kinde of running, as he termeth it, a thing both an enemie to health, to great a thinner of the whole bodie, and such a one, as hath no manner of manly exercise in it. Besides this, it putteth him which runneth so vehemently in daunger of some great conuulsion, if he fortune to encounter any violent stop by the way.