Daga ra'ayi na halittu, aikin motsa jiki na kwayoyin halitta shine bayyanar da matakai na ayyuka masu muhimmanci, inda kwayoyin halitta ke hulɗa da yanayin. Ana ba da aikin motar mutum saboda sabuntawar ƙwayoyin ƙwayoyin cuta waɗanda aka yi a ƙarƙashin iko mai ƙarfi na tsarin kulawa na tsakiya. Abubuwan da ke amfani da motar motsa jiki don kula da lafiyar mutum an tabbatar da su ta hanyar tabbatar da ilimin kimiyyar halitta. Yawancin motar motsa jiki ya dogara da dalilai masu yawa: tsarin ilimin lissafi na kwayoyin halitta, halayyar halayyar kwakwalwa da yanayin zamantakewa da rayuwar mutum, ƙayyadaddun ayyukan sana'a, samun samammun lokaci kyauta, da dama da kuma sha'awar shiga azuzuwan sassan wasa da kungiyoyi masu dacewa.
A wasu wurare daban-daban na rayuwar mutum, aikin motsa jiki yana kawo amfani mai mahimmanci. A lokacin yaro da yaro, saboda aikin motsa jiki, ci gaban al'ada da ci gaban jiki ya tabbatar. A cikin girma, dole ne a kiyaye wani matakin motsi. An kafa cewa a cikin wasanni daban-daban, ziyarci clubs masu dacewa ko wasu nau'o'in wasanni, inda ake samar da aikin motar (misali, hiking, girbi na namomin kaza da berries, kifi, da dai sauransu), da dama canje-canje. Musamman ma, an samu karuwa wajen magance matsalolin neuro-psychological, da mummunan tasirin muhalli. Lokacin da motar motsa jiki ke inganta yanayin jini, wanda zai tasiri sosai akan tsarin ilimin physiological nau'ikan takalma, gabobin da kwayoyin halitta. Abubuwan da ba za a iya amfani da ita ba a cikin rigakafin cututtuka daban-daban, kamar yadda yake taimaka wajen ƙarfafa rigakafi. Lokacin da mutum ya tsufa, masu nuna alamar yanayin ci gaba na jiki ya ragu, don haka dole ne a rage yawan matakin motar. A cikin tsofaffi, dole ne a aiwatar da tsarin aikin jiki don yin la'akari da ra'ayin likita. Duk da haka, ba za mu yi la'akari da cewa yawancin aikin motar ba, mafi yawan lafiyar lafiyar za ta kawo.
Harkokin kimiyya da fasaha ya haifar da amfanoni masu yawa ga bil'adama, yana sauke nauyin ma'aikata a wasu sassa na tattalin arziki. Duk da haka, bayyanar wasu sababbin fasaha na fasaha sun haifar da raguwa mai yawa a cikin aikin motar mutum, karuwa a cikin girman yanayin rayuwa, rashin tasowa a yanayin yanayi na rayuwar mutum, da kuma ƙarfafa matsalolin tsarin tsarin. Tattaunawa na aikin motsa jiki yana taimakawa wajen rage dukkan waɗannan tasiri na tasiri na wayewar zamani. Duk da haka, don samar da matakan da ake bukata na aikin motsa jiki da zai amfanar da lafiyar jiki, mutum mai aiki da "sedentary" ba shi yiwuwa ba tare da ziyartar kulob din dacewa ba kuma yana kula da horo na jiki.