1. Njira yolekererani ikuphatikiza kudula zinthuzo kukhala kukula kwake, kutenthetsa, kukhululukidwa, kuchiritsa kutentha, kuyeretsa, kuyeretsa, ndi kuyang'ana. Munthawi yaying'ono yopezera, ntchito zonsezi zimachitika ndi antchito angapo omasulira okhala ndi manja ndi manja pang'ono. Onse ali ndi malo omwewo ndi zowopsa; M'misonkhano yayikulu, zoopsa zimasiyana malinga ndi udindo. Ngakhale malo ogwirira ntchito amasiyanasiyana kutengera mawonekedwe omwe akuyembekezeredwa, iwo amagawana mikhalidwe ina: Kuchita zinthu mwamphamvu kwambiri, ntchito zouma zouma komanso zotentha komanso kuwonongeka kwa mpweya.

2. Ogwira ntchito amakhala ndi mpweya wonse wamagetsi ndi ma radiation otenthetsera, zomwe zimapangitsa kuti kutentha kwatenthedwe. Kuphatikiza kwa kutentha ndi ma metabolic kumatha kuchititsa mavuto osintha komanso kusintha kwa matenda. Kutulutsa kwa thukuta kumasiyana kutengera malo ochepa osokoneza bongo, kulimbitsa thupi, komanso kuchuluka kwa mafuta, nthawi zambiri kumatha kwa malita 1.5 mpaka 5, kapena kuposa. M'maso ang'onoang'ono kapena mtunda kuchokera pamatumba otentha, kutentha kwa bear kupsinjika nthawi zambiri kumakhala pakati pa 55 ndi 95; Koma m'malo ovuta, malo ogwira ntchito pafupi ndi ng'anjo yotentha kapena makina a Hammer atha kukhala okwera kwambiri monga 150-190. Kusavuta kuchititsa kusowa kwa mchere ndikutentha kutentha. Mu nyengo yozizira, kuwonekera kwa kusintha kwa mavoccomperimake kumatha kulimbikitsa kutengera komweko, koma kusintha kopitilira muyeso kumatha kuwononga thanzi.

Kuwonongeka kwa mpweya: Mlengalenga kuntchito akhoza kukhala ndi utsi, kaboni monoxide, kaboni dayokisi, kapenanso mphamvu ya mafuta owotcha, komanso mphamvu yotentha, mpweya, komanso mikhalidwe yoyaka. Phokoso ndi kugwedezeka: nyundo yolemetsa idzatulutsa phokoso locheperako komanso kugwedezeka pang'ono, koma pakhozanso kukhala zinthu zina zapamwamba kwambiri, koma pakhozanso kukhala zinthu zina zapamwamba kwambiri, koma zingakhale zina zopitilira pafupipafupi, ndi magawo okakamizidwa pakati pa 95 ndi 115. Kuwonetsedwa kwa ogwira ntchito kuti athe kugwedezeka kungayambitse kupsya thupi komanso zovuta zomwe zimagwira ntchito, zomwe zimachepetsa mphamvu yakugwira ntchito ndikukhudza chitetezo.