Da Dej Da Dej Pab Cov Khoom Siv Mus Saib Cov Khoom Siv Tsim rau Cov Neeg Laus thiab Cov Neeg Xiam Lwm Cov Kev Tu Tus Kheej xws li da dej yooj yim thiab nyab xeeb. Cov cuab yeej siv da dej feem ntau feem ntau suav nrog Handrier-dawb hom lossis ntu da dej pab uas yog lub teeb da dej uas yog qhov pom kev, ruaj khov, thiab tso tau yooj yim. Lawv haum rau cov chaw ib puag ncig tsev, chaw zov me nyuam, thiab cov tsev laus. Nws yog feem ntau nruab nrog tes thiab cov backrests los txhawb nqa cov neeg siv zaum thaum da dej thaum da dej thiab pab txhawb kev ua haujlwm. Cov tes taw-dawb-dawb taw-dawb ntawm tes kuj tseem hu ua kev nyab xeeb tuav cov ceg lossis kev nyab xeeb tuav. Lawv feem ntau yog siv los muab kev txhawb nqa thiab kev pab thaum lub sijhawm da dej. Lawv feem ntau tau nruab rau ntawm phab ntsa ntawm chav dej los pab cov neeg siv kom muaj kev sib npaug thiab tiv thaiv plam. Rub tawm-out lossis cov flueque kais dej rho tawm thiab cov kais dej yog tsim kom cov kais dej tuaj yeem txav tau yooj yim, uas yooj yim rau cov neeg siv ntxuav hauv txhua qhov kev qhia. Induction cov fluets tswj qhov hloov mus los ntawm infrared lossis lwm yam thev naus laus zis yam tsis muaj kev ua haujlwm zoo rau cov neeg laus.