Breast Cancer Archive

Many studies have explored the relationship between hair dye use and risk of cancer or cancer-related death, with conflicting findings. In a recent study, researchers analyzed survey data from over 117,000 women collected over several decades regarding hair dye use and overall cancer risk.

Screening for colorectal cancer can lower mortality, but it varies in effectiveness and is not always possible to perform, so alternatives are needed. Researchers analyzing studies found evidence for regular use of low-dose aspirin, leading the US Preventive Services Task Force to recommend it for some people.

The pandemic may be making life harder for those in abusive relationships, but help is available.

A woman experiencing abuse at the hands of an intimate partner often feels isolated and alone. But the truth is, she has a lot of company. As many as one in three women in the United States has experienced intimate partner violence (IPV), which is violence involving a current or former spouse, partner, significant other, boyfriend or girlfriend, says Eve M. Valera, an associate professor in psychiatry at Harvard Medical School. This number includes women from all different ages and backgrounds.

Those who experience IPV may be left with lingering health effects, including mental health disorders such as anxiety, depression, or post-traumatic stress disorder. IPV is also linked to a number of physical symptoms and conditions, according to the federal Office on Women's Health, such as digestive problems, migraine headaches, arthritis, asthma, chronic pain, sexual problems, and heart problems. Another area of growing concern for many researchers is the potential for cognitive changes caused by traumatic brain injuries linked to abuse, says Valera.

Research we're watching

Can your current or past menstrual cycle offer clues about your longevity? A study published Oct. 3, 2020, in The BMJ linked irregular or long menstrual cycles (defined as 40 days or more) throughout adolescence and adulthood to a higher risk of early death (before age 70), compared with that seen in women who had normal or short menstrual cycles. The study authors, who used data from nearly 80,000 women who participated in the Nurses' Health Study II, found that the association was stronger for deaths from heart and blood vessel disease and in women who smoked.

Women in the study were, on average, 38 years old and had no history of cardiovascular disease, cancer, or diabetes when the study began. Researchers asked them to recall the regularity and length of their menstrual cycles at various times in their life. The researchers followed the women for 24 years, noting deaths from various causes over time. The association of early death with irregular or long menstrual cycles persisted even after they corrected for other factors, such as lifestyle and family history.

In the journals

Colon cancer prevention involves following a healthy lifestyle — for instance, exercising and not smoking — and periodically getting a screening test such as a colonoscopy. But what impact do diet and medications have? A recent review of 80 statistical analyses published over the last 40 years explored this question. The review was published online Oct. 1, 2020, by the journal Gut.

Over all, the results were disappointing in that no specific drug, food, or supplement stood out in the body of evidence. Yet some of the reviewed studies did show a link between a lower risk of colon cancer and use of nonsteroidal anti-inflammatory drugs (NSAIDs) — such as aspirin, ibuprofen (Advil, Motrin), and naproxen (Aleve) —and a higher intake of fruits, vegetables, and fiber. But other studies did not.

Research we're watching

Treatment for women with a type of early breast cancer called ductal carcinoma in situ (DCIS) might not be doing enough to prevent deaths from the disease, says a study published online Sept. 16, 2020, by JAMA Network Open. The study sought to determine whether women diagnosed with DCIS had a higher risk of dying from breast cancer than women who did not have the disease. They looked at 144,524 women who were diagnosed with DCIS from 1994 and 2014 and then treated for the condition. Researchers compared them against women without DCIS from the general population. They found that the women with DCIS had three times the risk of dying of breast cancer in the follow-up period, which ran until December 2016, than women without DCIS. Study authors suggest ways that might identify which women with DCIS need more aggressive therapy to prevent breast cancer death.

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Endometriosis occurs in women when tissue similar to the lining of the uterus grows in other places in the body, most commonly within the pelvis, causing pain and other symptoms. Many women with this condition are not diagnosed properly until middle age. There are several options for treatment, and it may take time to find what works best for each person.

Doctors typically recommend that women who have high blood pressure avoid using birth control that contains estrogen to avoid raising risks for a stroke or heart attack. According to a clinical update, this recommendation may be changing for some women with high blood pressure.

Drinking no more than four or five 8-ounce cups of coffee per day—equal to about 400 milligrams of caffeine—helps people get the drink's health benefits with a lower risk of caffeine side effects like anxiety and nervousness.