Txawm hais tias cov luam yeeb hluav taws xob ua rau muaj kev hem thawj rau tib neeg lub cev yog txiav txim siab los ntawm tus nqi ntawm e-kua siv. Cov muaj pes tsawg leeg ntawm cov roj luam yeeb thiab seb nws ua tau raws li cov qauv yog qhov tseem ceeb. Cia wb mus saib qhov muaj pes tsawg leeg ntawm haus luam yeeb roj:
1. VG ( zaub glycerol)
2. PG (propylene glycol)
3. lus
4. Nicotine VG yog ib hom tshuaj thiab khoom noj khoom haus ntxiv (feem ntau siv los ua cov khoom qab zib xws li ncuav qab zib thiab chocolates) uas tsis muaj kev phiv rau tib neeg lub cev thiab tsis muaj xim thiab tsis qab.
PG yog siv los dilute lub viscosity ntawm VG thiab yog ib hom tshuaj thiab zaub mov additive uas feem ntau muaj kev nyab xeeb rau tib neeg noj qab haus huv.
Lub hav zoov ntawm cov ntsiab lus tseem ceeb yog qhov tseem ceeb ua kom lub saj ntawm cov kua luam yeeb sib txawv thiab ua rau tib neeg txaus siab rau qhov saj ntawm cov luam yeeb. Essence yog ntxiv rau ntau yam khoom noj uas peb noj txhua hnub.
Nws tsis yooj yim pom tias peb cov khoom xyaw no tsis muaj kev phom sij ntau. Lawv feem ntau siv rau qee yam khoom noj lossis khoom siv txhua hnub, thiab suav nrog cov tshuaj txhuam hniav rau menyuam yaus. Ntxiv mus, daim ntawv lo ntawm cov tshuaj txhuam hniav me nyuam kuj hais tias nws muaj kev nyab xeeb rau nqos.
Tom ntej no, cia peb saib cov khoom xyaw kawg - nicotine. Puas muaj kev nyab xeeb? Nicotine yog dav suav hais tias yog ib qho tshuaj lom txaus ntshai heev, thiab qee tus txawm hais tias tag nrho cov kev phom sij ntawm kev haus luam yeeb rau nicotine. Tab sis qhov tseeb, nicotine yog ua txhaum rau tar. Nrog rau kev nce qib ntawm kev tshawb fawb, kev tshawb fawb soj ntsuam tau ua pov thawj tias tar yog qhov ua txhaum ntawm kev mob qog noj ntshav. Thaum haus luam yeeb, haus luam yeeb thiab lwm yam khoom hauv cov luam yeeb hlawv, tsim cov tar. Tar muaj 16 carcinogens thiab 4000-5000 chemical Cheebtsam.
Nicotine nws tus kheej, ntawm qhov tsim nyog npaum li cas, yog qhov tseem ceeb ntawm cov tshuaj benign, thiab nws cov teebmeem zoo ib yam li cov kas fes. Nicotine tsis tsuas yog muaj nyob rau hauv cov nplooj ntawm cov luam yeeb, tab sis kuj nyob rau hauv ntau yam nroj tsuag ntawm tsev neeg Solanaceae, xws li txiv lws suav, kua txob, goji berries, thiab lwm yam nroj tsuag. Cov zaub thiab cov tshuaj ntsuab no tau lees paub tias yog cov khoom noj muaj txiaj ntsig thiab noj qab haus huv rau tib neeg lub cev.
Qhov me me ntawm nicotine hauv e-kua tsuas yog siv los txo kev haus luam yeeb thiab tso cai rau cov neeg haus luam yeeb ua kom tiav cov txheej txheem hloov luam yeeb ntau dua. Lub Koom Haum Saib Xyuas Kev Noj Qab Haus Huv Ntiaj Teb tau txhawb nqa kev hloov pauv tshuaj nicotine thoob ntiaj teb txij li xyoo 1990. Nicotine hloov txoj kev kho yog ib qho ntawm cov kev siv dav siv thiab kev kho mob pov thawj zoo kev haus luam yeeb hauv ntiaj teb, hloov cov nicotine tau los ntawm cov luam yeeb yav dhau los thiab pab tib neeg kov yeej lawv txoj kev vam meej ntawm luam yeeb ntawm lub cev thiab lub hlwb.
Yog li los ntawm cov saum toj no, nws tuaj yeem pom tau tias cov luam yeeb siv hluav taws xob pov tseg tsis ua rau muaj kev phom sij rau tib neeg lub cev, tab sis thaum yuav khoom, nws yog ib qho tsim nyog yuav tsum xaiv cov kev cai raug cai los yuav cov khoom tiag kom tsis txhob yuav peb yam tsis muaj khoom.