【GettingolderNoonereallyknowshowandwhypeoplechangeastheygetolder.Alsonotheorysufficientlyexplainsallthechangesoftheagingprocess.Agingisacomplexandvariedprocessthatvariesinhowitaffectsdifferentpeopleand】

Gettingolder

Noonereallyknowshowandwhypeoplechangeastheygetolder.Alsonotheorysufficientlyexplainsallthechangesoftheagingprocess.Agingisacomplexandvariedprocessthatvariesinhowitaffectsdifferentpeopleandorgans. 36

Atacertainpointinourlivesourbodysystemswillbegintoweaken. 37 . Itmaybecomemoredifficultforustoseeandhear.Theslowchangeofagingcausesourbodiestolosesomeoftheirabilitytobouncebackfromdiseaseandinjury.Inordertolivelongerwehavealwaystriedtosloworstopthischangethatleadsustowardtheendofourlives.

38 . Agooddietplaysanimportantrole.Theamount andthetypeofexercisewegetareanothertwofactors.Ourlivingconditionisyetanother. Butscientistsstudyingtheagingproblemwanttoknow:Whydopeoplegrowold?____39

Thereisnothingtobeafraidofastheoldagecomes.Manyconsiderthelaterpartoflifetobethebesttimeforliving. 40

Whatweconsidertheoldagenowmayonlybemiddle-agedsomedaysoon.Withsomanyadvancesinmedicalsciencehappeningsoquicklylifelengthmayonedaybemeasuredincenturiesratherthaninyears!

A.Theyhopethatbystudyingtheagingmedicalsciencetheymaybeabletomakethelengthoflifelonger.

B.Manyfactorsdecideourhealth.

C.Ourstrengthmaybecomeweaker.

D.Asfordietpeopleareadvisedtoeatlesssaltandsugar.

E.Physicalactivitymaybecomelessbutoftenwegetbetterunderstandingoftheworldandourselves.

F.Symptomsincludealackofenergyslowreactionsinsomniaandpoormemory.

G.Infacteveninonepersondifferentorgansystems“age”atdifferentrate.