Myth: Caffeine Causes Breast Cancer
This idea was actually studied, and not surprisingly found wanting. In fact, there have been some studies that have indicated caffeine consumption can lower breast cancer risk.
Myth: Needle Biopsies Can Disturb Cancer Cells and Cause them to Spread to Other Parts of the Body This kind of pseudo-scientific concept is built on a misunderstanding of how cancer metastasizes. Essentially, cancer cells multiply and spread as a result of internal processes, causing a tumor to grow and change location over time. Physical processes or actions going on around these tumors cannot possibly cause cancer cells to spread as if they were some kind of wind-blown seed or malignant pollen.
Myth: After Heart Disease, Breast Cancer Kills More Women than any Other Cause
The real statistics, in annual deaths among American women:
- Stroke: 96,000
- Lung cancer: 71,000
- Chronic lower respiratory disease: 67,000
- Breast cancer: 40,000
Myth: Hair Straightening Chemical Used Frequently by African-American Women Can Cause Breast Cancer
Another urban legend refuted by actual study. Of course, everyone should be concerned about the effects of exposure to strong chemicals on their health. But whatever the risks in this particular case, breast cancer is not one of them.
Myth: A Mastectomy is better than a Lumpectomy Combined with Radiation Therapy
Research has found that survival rates are basically identical in cases where women had the option of one or the other. This misinformation has been spread by medical professionals in some cases, especially by older doctors who graduated from medical school before the lumpectomy came into widespread use and apparently have some kind of latent, visceral mistrust of the technique.
Myth: Fertility Treatments Increase Breast Cancer Risk
Elizabeth Edwards, wife of former presidential and vice-presidential candidate John Edwards, had fertility treatments and then later died of recurrent breast cancer. This has helped spur belief in this idea. However, controlled, scientific studies have not found any link, even though fertility treatments do involve the use of estrogen, exposure to which is of course known to increase a woman’s lifetime risk for breast cancer.
Myth: Living Near High Voltage Power Lines Can Cause Breast Cancer
Back in 2003, a study on this question was carried out in Long Island, N.Y., where women in several counties were being diagnosed with breast cancer at rates high above normal levels. Whatever the cause of this outbreak was, researchers proved that it was not exposure to high-capacity power lines.


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