Futhi niyazi, yini umdlavuza?

Abantu bakholelwa ukuthi bayazi kahle ukuthi umdlavuza. Ngakho ngaphansi leli gama efihla hhayi isifo esisodwa, kodwa abaningana, futhi ikakhulukazi ezinemininingwane sihluke nomunye. Kukholakala ukuthi igama elithi "umdlavuza" futhi igama elithi "ukufa" - omqondofana, kodwa izifo eziningi neoplastic akugcini ukufa umuntu. Ngaphezu kwalokho, linesikhathi eside likhona ukuthi umzimba ngendlela ehlelekile imfundo umdlavuza ngendlela (yesiqalo ephathelene nokudabuka-oncogenes), kodwa alwa nabo ngokusebenzisa amasosha omzimba ekhona. Futhi ngenkathi umdlavuza uyaqhubeka sisondela ngokungenakuvinjelwa sika esintwini.

Ngakho, liyini umdlavuza? Lokhu kungukuphula inqubo yokuzala futhi cell yokuvuselela. Umzimba, isimiso, uhlelo eziklanyelwe ukuvimbela amaphutha ezenzeka emangqamuzaneni. Nokho, le indlela khona kwezimo ezithile ezingezinhle, kungenzeka ingasebenzi. Uma iseli nge yokuphambuka omunye Uhlelo (noma azinakwa), umzimba sibachithe. Kodwa uma la mangqamuzana wande angalawuleki, isimila livela. Nakuba amaseli yayo zikhule kuphela - isimila kubhekwa kungavamile ukuba ingozi, kanye nommese ngeke kalula ukubhekana nale nkinga. Kodwa uma amaseli asabekayo bahlasele kwezitho nezicubu eduze, umzimba ifunda ukucabanga ukuthi umdlavuza ezinjalo.

Ingozi eyinhloko lesi sifo ukuthi amaseli "okungalungile" ungakwazi "sihlasela" omakhelwane babo okunempilo ukuziphatha okungafanele - yingakho umdlavuza iphathwa sina, nokusetshenziswa izindlela ukuthi zibeka yingozi. Kodwa lutho kungenziwa ngomdlavuza - isifo ukuthi ezimweni eziningi ephelezelwa ubuhlungu obukhulu, futhi ngaphandle imithi enamandla umuntu ungafa ukushaqeka. A amaseli soguquko lwegciwane singalawuleka ngenkuthalo simelane ukubhujiswa - kungakho chemistry ngemisebe.

Imbangela yale ukungasebenzi amaseli ngokukhethekile carcinogens. Ezinye zazo (phenol, izingxenye kagwayi, asbestos) mutagenic bebodwa, abanye, afana notshwala, isinyathelo ngokungaqondile kuyashesha cell division.

Abanye-virus, njengengculaza kwesibindi, futhi imbangela kunokwenzeka umdlavuza.

Empeleni zonke ezaziwayo kanye esabise kakhulu isici emisebeni ibonwa. Kuyini kancane ongaziwa: ngobuso emisebeni akuzona abantu abaningi kakhulu. Kunalokho ezethusa nakakhulu ukuba intuthu - naye 80% abanye lwesintu ibhekene.

Kodwa kancane-eyaziwa imbangela umdlavuza kungukudla, esetshenziswa kakhulu endaweni ethize. Njengoba isibonelo, Japan, okuyinto evame kakhulu umdlavuza isisu. Noma-United States, lapho njalo umdlavuza wamathumbu. Ngaphezu kwalokho, lapho kushintshwa endaweni ehlala njalo lokuhlala (ie ushintsho yokudla) izakhamuzi ezintsha ukushintsha ingozi izwe lakhe engozini a ezweni entsha.

Nokho, imbangela lokugcina umdlavuza - zofuzo, iziyaluyalu hormone nezinkinga mzimba (ezifana AIDS).

Qonda bona ngokwabo ukuthi yikuphi umdlavuza, akudingekile yithemba, uma ebhekene nale Ihlahlubo kwabangcwele bakhe noma ebathandayo. Isibindi nokuqina angenza izimanga! Umlando isifo "umdlavuza" uyazi ezimweni lapho imithi yesimanje, amandla umoya womuntu futhi ukukholelwa iziguli ukulondolozwa kangcono, kwenzeka, futhi abanathemba.