Dzuŵa, lomwe lili pafupi kwambiri ndi labwino kwambiri, limapangitsa kuti moyo ukhale wovuta padziko lapansi. Dzuŵa limapereka kutentha kwa dziko lapansi, kutentha ndi mphamvu zofunikira kuti zinyama zinyama. Zimatitsogolera usiku ndipo zimalimbikitsa kukhala ndi moyo wabwino.
Kuwala kwa dzuwa ndi kofunikanso kuti vitamini D iyambe pakhungu - ndicho chifukwa chake vitamini D nthawi zina amatchedwa vitamini.
Ndipo zimangochitikadi kuti mamiliyoni ambiri a ku America mwina sangakhale ndi vitamini D. Amatha kupeza vitamini D pa zakudya zanu, koma zakudya zochepa kwambiri zomwe zimadya zakudya zakumadzulo ndizochokera ku vitamini D.
Mavuto a UV
Kuopsa kwa kutuluka kwa ultraviolet (UV) kukudziwika ndi kukambidwa kwa zaka zambiri. Mafuta a UV amachititsa basal cell carcinoma , squamous cell carcinoma , ndi khansa yoopsa ya khansa. Kuopsa kwa khansa ya khungu kumawonjezeka pamene anthu akudzipatulira okha dzuwa, kapena mwadzidzidzi amadziwonetsera okha ndi magetsi opangira dzuwa monga mabedi okhwima. Ndipo kwa iwo omwe akukhudzidwa ndi zotsatira zodzikongoletsera, dzuŵa ndi gwero la zomwe zimadziwika monga photoaging - kusakala msanga kwa khungu chifukwa cha kutuluka kwa UV kosatha. Zotsatira za kujambula zithunzi zimachokera ku khungu lakuda, khungu loyeretsa kuti likhale losavuta, kukula, kapena actinic keratoses.
Khansa ya Khansa ya Khansa
Ngakhale kuti khansa ya kansalu yopanda khansa yafala kwambiri, sichitha kufa. Mosiyana ndi zimenezi, khansa ya khansa imaimira zosakwana 5 peresenti ya khansa ya khungu koma imayambitsa matenda ambiri a khansa ya khungu. Ndiwo khansa yachiwiri ya amayi mumasewera awo 20 komanso khansa yachitatu yowopsa kwambiri ya amuna ali ndi zaka za 20. Chiwopsezo chachikulu cha khansa ya khansa yapezeka ndi anthu omwe ali ndi mbiri yowonjezera dzuwa.
Mpukutu wa dzuwa umateteza kutentha kwa dzuwa, ndipo American Academy of Dermatology ikupitirizabe kuyamikira. Chitetezo ku zowopsa kwambiri ndi chinthu chabwino, ndipo zikuwoneka kuti izi zikhoza kutanthawuzira chitetezo china pa nkhani ya malungo. Izi zinati, kuwala kwa dzuwa ndi gawo limodzi chabe la chithunzi chonse pankhani ya kutetezedwa ku dzuwa. Ndipo palibe kafukufuku amene wasonyeza kuti kugwiritsa ntchito mawindo a dzuwa, okha, kumateteza khansa ya melanomas kapena basal cell carcinomas, malinga ndi nkhani ya March 20011 yotchedwa "Pediatrics." Nthaŵi imene mumakhala padzuwa komanso m'maso anu ndizofunika kwambiri.
Kodi Vitamini Yotentha Imateteza Khansa?
Pali chifukwa chokhala ndi chiyembekezo, koma palinso mafunso ambiri omwe alibe yankho. Malingana ndi kafukufuku wa ma laboratories, kusowa kwa vitamini D kumawoneka kuti kumathandiza kuti ziphuphu zina zikhalepo, koma akatswiri amanena kuti kafukufuku amafunika kwambiri asanayambe kukhala ndi vitamini D supplementation wothandizira kupewa khansa.
"Low Cloud Cover" Phunziro ndi Leukemia
Maphunziro a zinyama ndi ma laboratories amachirikiza lingaliro lakuti kukhala ndi vitamini D okwanira kungathandize kupewa khansa ya m'magazi, koma palibe umboni woterewu ulipo mwa anthu. Komabe, gulu la asayansi linadzifunsa ngati angathe kuona umboni woteteza kuwala kwa dzuwa (ndi mavitamini D apamwamba) omwe amachokera ku mayiko osiyanasiyana.
Iwo analimbikitsa kuti anthu okhala m'mayiko akutali kutali ndi equator, ndi kutsika kwa UVB, omwe amakhala ndi mavitamini D, angasonyeze kuti ali ndi chiopsezo chachikulu cha khansa zina, kuphatikizapo khansa ya m'magazi .
Mosiyana ndi kafukufuku wakale, gulu ili linasinthira chivundikiro cha mtambo m'mayiko osiyanasiyana ndipo chimakhudza kuwonetseredwa kwa UVB kwa anthu okhala pansi. Anasintha izi pogwiritsira ntchito data satana kuchokera ku NASA.
Mu phunziro ili, kusintha kwa chivundikiro cha mtambo, maukhupa a m'magazi anali apamwamba kwambiri m'mayiko omwe ali pafupi kwambiri ndi mitengo, monga Australia, New Zealand, Chile, Ireland, Canada ndi United States.
Iwo anali otsika kwambiri m'mayiko pafupi ndi equator, monga Bolivia, Samoa, Madagascar ndi Nigeria.
Kuwerenga kotereku sikungathe kutsimikizira kuti vitamini D imafooka ku khansa ya m'magazi, koma ikuwonetsa mgwirizano womwe ungathe kufalikira ndi kusanthuledwa ndi asayansi.
Vitamini D ndi Chithandizo cha Leukemia
Pankhani ya khansa ya magazi monga khansa ya m'magazi ndi mitsemphama, umboni umagwirizanitsa lingaliro lakuti vitamini D kwenikweni ikuwoneka kuti imathandiza ena mankhwala ochizira khansa amachita ntchito yawo.
Kafukufuku wasonyeza kugwirizana pakati pa kuchepa kwa vitamini D ndi kufalikira kwa mitundu yosiyanasiyana ya khansa ya magazi, kuphatikizapo matenda aakulu a khansa ya m'magazi (CLL) , ndipo imafalikira kwambiri B cell lymphoma (DLBCL), yomwe ndi yofala kwambiri ya mtundu wa non-Hodgkin lymphoma .
Koma maphunziro awa ayang'ana chammbuyo, kotero zingakhale zovuta kufotokoza chifukwa chake. Kodi vitamini D ingagwiritsidwe ntchito kuwonjezera mphamvu za mankhwala ena a khansa? Ichi ndi funso lotseguka, koma deta ikulimbikitsa.
Ntchito ya vitamini D ya mafupa amphamvu ndi ofunikira. Ambiri ochizira khansa - ndipo kawirikawiri khansa yokha - amakhala ndi chizoloŵezi chochotsa mafupa, kuwonjezera chiopsezo cha matenda odwala matenda a mitsempha. Choncho kukhala ndi calcium ndi vitamini D okwanira kungakhale kofunikira ndi momwe thupi limakhudzira thanzi.
Zotsatira:
> American Academy of Dermatology. Mpukutu wa dzuwa umakhalabe wotetezeka, woteteza dzuwa.
Balk SJ. Mazira a Ultraviolet: Vuto la Ana ndi Achinyamata. Matenda . 2011; 127 (3): 588-97.
> Cuomo Zima, Garland CF, Zima Gorham ED, Mohr SB. Kutsekedwa kwa Mtambo Wowonongeka Kwambiri Wowonongeka Kwambiri Kumaphatikizapo Kuwonjezereka Kwambiri kwa Mthemphaya: Kuphunzira Mayiko 172. PLoS ONE . 2015; 10 (12): e0144308.
> National Aeronautics ndi Space Administration. Mitundu Yapadziko Lonse Yowonjezera Ma Satellite Project Project. http://isccp.giss.nasa.gov/products/browsed2.html.
> Wu X, Groves FD, McLaughlin CC, Jemal A, Martin J, Chen VS. Zotsatira za Khansa Zina mwa Achinyamata ndi Achinyamata Achikulire ku United States. Khansa Imayambitsa Kulamulira. 2005; 16 (3): 309-320.