1, four major factors causing breast cancer
1. estrogen factor
For example,/kloc-women with premature menarche before the age of 0/2 or after the age of 55 will double their chances of developing breast cancer.
Women who have never given birth or given birth to their first child after the age of 35 are about three times more likely to develop breast cancer.
Oral contraceptives will not increase the incidence of breast cancer, but if oral contraceptives are used a few years before the first pregnancy, it may have a certain impact on the incidence of breast cancer.
It has also been reported that long-term use of hormone replacement therapy after menopause will increase the risk of breast cancer.
2. Dietary factors
The incidence rate of women who are mainly meat is higher than that of women who are mainly vegetarian. Obese women are more likely to get breast cancer, especially after menopause.
3. Genetic factors
Very few breast cancers are hereditary. If a woman's mother or sister has breast cancer, her risk of breast cancer is 2-3 times higher than that of the general population.
4. Benign breast diseases
Such as cystic hyperplasia of breast and fibroma of breast. , there is the possibility of malignant change.
The above are some causes of breast cancer introduced by Bian Xiao, so how should we reduce the risk of this disease? How to deal with it?
2. Skills to reduce the risk of breast cancer
1, have a good sleep
A new study by case western reserve university University found that menopausal women who sleep less than 6 hours a night have twice the risk of breast cancer as those who get enough sleep.
Dr. Cheryl, the head of the new study, said that 7-8 hours of sleep every night can maintain a normal body rhythm and help reduce the risk of cancer.
Step 2 lose weight
A new study involving more than 4,000 women at Montefiore Medical Center in new york, USA, found that obesity increases the risk of breast cancer recurrence by 30% and death by 50%.
The researchers pointed out that adipose tissue can increase the level of estrogen in women, which in turn increases the risk of breast cancer. Fat also increases insulin levels that stimulate tumor growth.
Step 3 eat broccoli
A study by Harvard School of Public Health found that women who eat more vegetables such as broccoli, cabbage and broccoli can reduce the incidence and recurrence rate of breast cancer by 62% and 35% respectively.
Vitamin C, carotenoids and polyphenols in these vegetables can play a key anti-cancer role.
Step 4 drink less
More than 40 studies have found that drinking two glasses of wine a day will increase the risk of breast cancer by 265,438+0%, and frequent drinking will increase the recurrence rate by 65,438+09%.
Experts from Caesars Medical Group in the United States said that drinking alcohol will increase the estrogen level of menopausal women and increase the risk of breast cancer.
5. Be diligent in activities
A recent study by the University of North Carolina found that walking, planting vegetables, flowers and doing housework 10~ 19 hours a week can reduce the risk of breast cancer by 30%.
Summary: The above small series focuses on some knowledge of female breast cancer, and briefly introduces the causes of breast cancer and the methods to reduce it. I hope every woman can check in time and pay attention to health care!
3. Foods to prevent breast cancer
1, whole wheat food
A study of premenopausal women by the American Health Foundation found that whole wheat containing wheat germ, bran and bran can reduce the level of estradiol. In addition, a high-fiber diet can also lose weight. However, fat and high body weight are high-risk diets for breast cancer. The most typical example is that after women in low-incidence areas such as China settle in high-incidence areas such as the United States, the risk of breast cancer increases, and the incidence of breast cancer in their offspring is not significantly different from that of local residents, which also suggests the importance of healthy eating habits of low-fat and high-fiber diet.
2. Fungi
Mushrooms such as Hericium erinaceus contain polysaccharides and peptides, which have a strong inhibitory effect on cancer cells and can also produce interferon, thus enhancing the anti-cancer effect.
3. Beans
Soy foods are rich in phytoestrogens. According to the research report of Hawaii Cancer Research Center, regular consumption of soybeans can significantly reduce the risk of breast cancer.
4.seafood
Experts found that fish protein and vitamin D have protective effects on breast cancer in areas with low incidence of breast cancer, while cold water fish such as salmon, mackerel, eel, tuna, herring, cod and sardine are rich in omega-3 fatty acids, which can not only inhibit the growth of cancer cells, but also kill early breast cancer cells.
5. Healthy oil
Studies have shown that regular intake of monounsaturated fatty acids can reduce the risk of breast cancer. For example, squalene contained in olive oil can inhibit the abnormal proliferation of mammary epithelial cells and is a good anticancer component.
6. Fresh fruits and vegetables
According to the research data of 12, the National Cancer Research Association of Canada believes that fresh fruits and vegetables have anti-breast cancer effects on women of different ages. Flavonoids kaempferol and quercetin extracted from common vegetables such as red grapes, red apple peels, peppers and onions can prevent and treat early breast cancer.
Cruciferous vegetables such as cabbage, cauliflower and Brussels sprouts, as well as carrots, asparagus and garlic, have a good effect on preventing breast cancer. Many studies have pointed out that foods rich in B- carotene can reduce the incidence of breast cancer.
Green tea contains EGCG, a compound that can inhibit breast cancer in mice. Tomatoes contain a compound called lycopene, and the high content of lycopene in the diet is related to reducing the incidence of breast cancer.
There is a compound called limonin in the orange peel and white film of orange juice, which can inhibit the growth of breast cancer in test tubes, but it is best to drink fresh orange juice squeezed by yourself.
In addition, there are many foods that can inhibit the occurrence and growth of breast cancer. For example, sweet potatoes contain anti-cancer substance dehydroepiandrosterone; Jujube can inhibit the formation of breast cancer cells and so on.