http___megagiga.info_naucnik-otkrio-najveci-uzrok-raka-dojke-uzimamo-to-svaki-dan__1.xml
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Breast Cancer Risk Factors Common risk factors associated with breast cancer are: Cancer Genes A woman who has breast cancer sufferers in the family is at a higher risk. This may be due to mutations occurring in the genetic structure. BRCA1 and BRCA2–are the two commonly associated genes with hereditary breast cancer. Whether a woman has these genetic mutations can be found by blood screening. Also these women may be at a higher risk for ovarian cancer as well. Family History Women who have family members with breast cancer are at higher risk of developing breast cancer. For example, a woman whose mother developed breast cancer will have approximately twice the normal lifetime risk of developing breast cancer. Estrogen Estrogen levels may affect a woman’s chances of breast cancer. Estrogen levels increase at puberty and high levels of the hormone cycles in the bloodstream until menopause. The longer a woman is exposed to estrogen, the higher her risk of breast cancer. Thus, women who have late onset of menstruation or early menopause have a much lower risk of breast cancer. Women on hormone replacement therapy after menopause have a slightly elevated risk of breast cancer while they’re taking the hormones. But the risk drops when they stop the medication. Women taking oral contraceptive pills containing estrogens also have a slightly increased risk of breast cancer. Reproductive History Women who have not borne children are at a higher risk. This seems to arise from the fact that the hormonal changes that occur during pregnancy decrease the susceptibility of the breasts to cancer. Weight More the weight of the woman the greater her risk. This risk increases after menopause is reached. The adipose tissue in the body (fat) stimulates excess estrogen production thereby putting this group at a greater risk. Environmental Factors Chemicals used in pesticides (such as DDT), plastics, paper, detergents, textiles, cosmetics, hair colorings and other common products, may be responsible for higher risk of breast cancer, although no concrete evidence has been found. Also underarm antiperspirants and underwire bras are suspected to play a role but again, in the absence of evidence it cannot be conclusively stated. Alcohol/Smoking Higher consumption of alcohol, tobacco & drugs increase a woman’s risk.
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Rizik od razvoja raka dojke je čak tri puta veći kod ljudi koji konzumiraju tri šolje mlijeka od onih koji su imali samo jednu šoljicu ili manje na dnevnoj bazi. Ovo je otkriveno u naučnim istraživanjima u Norveškoj. Rak dojke je danas jedan od najčešće prisutnih vrsta raka širom svijeta, a vrlo očito je da je mlijeko jedna od stvari koju možemo kriviti za to. Prema istom istraživanju koje je provedeno u Norveškoj otkriveno je da u područjima gdje je potrošnja mlijeka na jako niskoj razini gotovo ne postoji slučaj raka dojke. Također žene koje su imale iskustva s rakom dojke konzumirale su dva puta više vitamina D u odnosu na one koji nikada nisu imali rak dojke. Ovo su rezultati studije. Ono što još više povećava rizik od raka dojke jeste konzumiranje velike količine prerađene hrane, tjestenine, svinjskog mesa i šećera. Grudnjak isto može biti uzrok raka dojke. Žene koje često nose grudnjak više od 12 sati, imaju veći rizik od razvoja raka dojke u odnosu na žene koje ga nose samo povremeno ili ga nikada ne nose.