Ntaiv yog ib hom khoom siv tawm sab nraum zoov, uas feem ntau tshwm hauv cov tsev kawm, chaw ua si, thiab lwm yam; Cov kev faib ua ke ib txwm muaj xws li zigzag ntaiv, C-hom ntaiv, S-hom ntaiv thiab tes nce toj ntaiv. Cov neeg zoo li hom kev ua haujlwm sab nraum zoov, tsis yog tsuas yog vim nws cov cim tshwj xeeb, tab sis kuj yog vim nws cov nyhuv muaj txiaj ntsig zoo. Tsis muaj teeb meem dab tsi hloov yog, tus ntaiv tuaj yeem siv lub zog ntawm cov ceg tawv sab saud thiab txhim kho kev tuav tuav ntawm ob txhais tes. Ntxiv mus, yog tias cov khoom siv no feem ntau siv, lub dab teg, luj tshib, xub pwg, xub pwg thiab tuaj yeem hloov kho tau ntau dua. Ntxiv mus, cov qauv tsim qauv ntawm tus ntaiv tseem tuaj yeem txhim kho kev sib koom tes ntawm tib neeg lub cev. Cov pej xeem feem ntau tuaj yeem siv tus ntaiv kom haum.
Kev siv cov kab square ua rau cov seev muaj cov khoom siv ntau dua, zoo nkauj thiab ruaj khov, thiab tuaj yeem tiv thaiv hnyav dua.
Ua Haujlwm:
1. Ua kom cov ntshav ncig ntawm lub cev thiab txhawb cov metabolism;
2. Txhim kho lub zog ntawm cov ceg tawv sab saud thiab lub plab zom mov thiab lub plab, txhim kho lub ntsiab ntawm lub xub pwg pob qij txha, thiab kev ua kom muaj kev sib xyaw thiab kev sib koom tes.
3. Electrostatic txau cov txheej txheem yog saws rau ci xim.
4. Qhov kev xaiv ntawm lub ncoo thiab cov xim txheem xim yog pub dawb, thiab koj tuaj yeem xaiv cov xim sib txawv.