What they are: Fat and connective tissue surrounding 15 to 20 lobules that, when lactating, produce milk through 6 to 10 ducts
What they do: Nourish infants; fill out a halter top
Why they're important: Breasts are the second most common site of cancer (after skin) in American women.
Totally normal. On average, one breast (usually the left) is larger than the other. --Annals of Plastic Surgery
Common signals include:
Fluid from the nipple in women who aren't breast-feeding can be the result of infection or a side effect of certain medications. See your doctor to determine the cause.
Yes, they could be cancer, but most aren't. Lumpiness can be the result of extra fluid in the breasts around the time of your period, growth of milk glands during pregnancy, or fat loss during menopause. Still, it's best to have any lump you find examined by a doctor.
Hormonal ebbs and flows can cause pain around your period, or as you approach menopause. (Some women report that cutting back on caffeine helps.) If you're breast-feeding, pain and redness can point to mastitis, an infection in the milk duct.
Like you, they appreciate good food and exercise
In a study of dietary patterns at the University of Utah, a so-called "Native Mexican" diet rich in beans, spices, and tomato-based sauces was associated with a 32 percent lower risk of breast cancer than a typical Western diet.
"Our studies show that in overweight women, losing 5 percent of their starting weight can reduce risk factors for breast cancer by lowering their levels of insulin, estrogen, and testosterone," says Anne McTiernan, M.D., of the Fred Hutchinson Cancer Research Center, in Seattle.
The link between contaminants and breast cancer isn't fully understood. But Swedish research showed that older women with the highest exposure to cadmium, a carcinogen that gets into food via fertilizers, had a 21 percent greater risk of getting the disease than those with the least exposure did. Fruits and veggies help offset toxins' effects.
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