How to keep well : a text-book of health for use in the lower grades of schools with special reference to the effects of alcholic drinks, tobacco and other narcotics on the bodily life . r tooslowly, or just as it ought to do in health. You have 98 HOW TO KEEP WELL probably seen an india-rubber tube on a garden-hosemove on the grass at each stroke of the is a pulse, and is exactly the same as the pulse inour large blood-vessels. The pulse is really everywhere in the body where anartery comes near thesurface, as on the tem-ples, the sides of theneck, and near theankle. The doct
How to keep well : a text-book of health for use in the lower grades of schools with special reference to the effects of alcholic drinks, tobacco and other narcotics on the bodily life . r tooslowly, or just as it ought to do in health. You have 98 HOW TO KEEP WELL probably seen an india-rubber tube on a garden-hosemove on the grass at each stroke of the is a pulse, and is exactly the same as the pulse inour large blood-vessels. The pulse is really everywhere in the body where anartery comes near thesurface, as on the tem-ples, the sides of theneck, and near theankle. The doctor feels yourpulse at the wrist simplybecause it is more con-venient for him to do of the arteries aremore deeply buried inthe flesh, where it isnot easy to reach a healthy adult,the pulse beats aboutseventy-two times aminute. In children thepulse is quicker than inadults, and slower in oldage than in middle healthy people,however, have rapidheart-beats ; others very slow. In certain diseases,especially in fevers, the pulse goes with great suddenleaps, like a galloping horse; in others it trots in littlejerks; while in a feeble person it moves slowly and. Fig. 36. — Diagram of the Arterial System. THE BLOOD, THE RIVER OF LIFE 99 wearily, and its throbs are so weak that we can scarcelyfeel them. 75. Good Circulation, and how to promote it.— A proper amount of exercise enables all the organs olthe body to do their work with more vigor. When wefeel cold, a brisk walk or a lively game will start theblood, and will make us feel warm. A daily bath,followed by a brisk rubbing of the-skin with a coarsetowel, promotes the circulation. Excessive exercise is, however, to be avoided. Likeany machine, the heart may be strained by violentefforts. Gymnasts, oarsmen, base-ball players, andothers occasionally wrench the delicate machinery ofthe heart, causing oftentimes many years of ill health. Many of the veins lie so near the surface of thebody, that the flow of
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