Show v P. Daily Health St St. Service itt i Pulse JI Varies aries Greatly Even in Normal Nornal i 1 People By DR MORRIS FISHBEIN Editor Journal of ot the American Medical Med le ical lel Association and of ot the Health lIa Magazine zine The rate of the heart beat Is Te rte hea con can trolled rolled tollo by various factors fator Thus Tu Impulses Im Irn pulses coming to t the heart het along the nerve nere called cled the thc va us nerve slow JoW the he heart heat beat and control the strength of or the tho contraction Any force orce which Influences the te nerve ner c thereby influences he the heart heat rate ate The Te heart beart rate is influenced by y emotion In states of or excitement it It t usually quickens Quicken In I sudden shock chock the he beat bat slows or may even cven stop The Te common form of fainting as a the he result of ot emotion or as the re suIt sult of or standing long on the te feet feet Is partly pa due to a stimulus coming along the nerve Nervous Nerous women Wamen wo Wa wo men and people convalescing from disease are particularly liable lable to t be affected by fainting attacks Before the person faints tants he feels eels unsteady dizzy dIz and lila his hi vision blurs bJurs The rho action nUon of or the heart heat gradually becomes slower slow er and the rate of the pulse pule may fall faU to toO 40 or 50 Instead of oC the n normal rate rte of from 75 to 85 Associated with wih this slowing of or the heart heat the te person per per- son rn becomes pale and his hb blood blo pressure pres sure may sink Wk to a D very low point The Te heart rate is I not ordinarily affected af by quiet breathing but bt if 1 one breathes deeply the heart rate quick w ens on Inspiration and slows on res re These Tese variations associated ed with wih breathing are presumably also aso due to changes in I the condition of the the- nerve It is known kown that the thc control of or the gus nerve over the heart heat rate may be b abolished by certain certin drugs Quickening Quick Quck ening of or the heart rate also occurs ours In n response to various drugs drug or it may be 36 slowed by the use of or various drugs The Tle rate rat of the heart heat Is faster tater whenever when ever there Is I fever or whenever the metabolic activities of or the body by are Increased by various causes Recently thc the United d States public health service Investigated the rate of the heart hear beat in I a u group of or people pea peo pie engaged in office work Eleven po men and 11 1 women apparently well wen had their h heart at rates taken every morning morg for tor consecutive morn ings The records showed shoved great variations va vs v. v nations in i the heart rate indeed from six to seven beats beat per minute and the rates deviated as a much as 10 to r 15 beats beat per minute without having any particular significance The fact fat is I Important because many people of or nervous temperament worry greatly greaty when they detect a wor slowIng slowIng slow- slow Ing ng or increase in i the heart rate without with wit out having any clear understanding as a to the cause cau |