Category Archives: Cancer
Survey: Half of U.S. Adult Smokers Plan to Quit for New Year
More than half of adult smokers in the United States made quitting tobacco a New Year’s resolution for 2014, according to a new survey from Legacy, a national public health nonprofit. These findings are especially significant today, on the eighth day of the new year, as the eighth day of a quit attempt is when a smoker is most vulnerable to a relapse. This month also marks the 50th anniversary of the first Surgeon General’s report on tobacco. Among the survey’s other findings:
- 41 percent planned to quit smoking "cold turkey" for New Years, which is largely ineffective for the majority of smokers
- 12 percent planned to switch to electronic cigarettes, an unregulated product whose safety risks remain unknown
- 37 percent plan to quit to save money
- 31.7 percent want to quit because they don’t want their clothes and hair to smell
Read more on tobacco.
ACS: Cancer Death Rates Fell 20 Percent Over Two Decades
The combined cancer death rate for men and women fell 20 percent in the two decades from 1991 to 2010, with better prevention, screening and treatment critical to continuing this positive trend, according to a new report from the American Cancer Society. The drop translates to approximately 1,350,400 fewer deaths. The report estimates that the United States will see a total of 1,665,540 new cancer cases and 585,720 deaths from cancer in 2014. From 2006 to 2010, cancer death rates decreased by 1.8 percent annually in men and by 1.4 percent in women. Lung, colon, prostate and breast cancers are the most common causes of cancer death, with lung cancer accounting for approximately one in four deaths. Read more on cancer.
‘Green’ Labels for Healthy, ‘Red’ for Unhealthy Foods Improve Nutritional Selections
The “stop” and “go” colors of traffic signals may be able to improve healthy eating choices in cafeterias, according to a new study in the American Journal of Preventive Medicine. A redesign of the cafeteria at Massachusetts General Hospital combined better locations for health food items with red, yellow and green labels marking the nutritional quality of different foods, with junk foods being red. Over two years, green-labeled items sold at a 12 percent higher rate and sales of red-labeled items dropped by 20 percent. "Our current results show that the significant changes in the purchase patterns...did not fade away as cafeteria patrons became used to them," said study lead author Anne Thorndike, MD, of the division of general medicine at the Boston hospital. "This is good evidence that these changes in healthy choices persist over time." To learn more about the study and concept, go to "Traffic-Light Labels and Choice Architecture: Promoting Healthy Food Choices" at RWJF.org. Read more on nutrition.
NHTSA: Motorcoaches, Large Buses to Require Seatbelts for All Passengers and Driver
New motorcoaches and large buses will be required to provide lap and shoulder seatbelts for all passengers and driver, under a new rule issued by the U.S. Department of Transportation's National Highway Traffic Safety Administration (NHTSA). While the buses are an overall safe way to travel, the large numbers of people they carry and the high speeds at which they travel mean a single collision can lead to a significant number of injuries, according to NHTSA. An average of 7,934 riders are injured each year in motorcoaches, and an average of 21 passengers are killed. "Buckling up is the most effective way to prevent deaths and injuries in all vehicular crashes, including motorcoaches," said Federal Motor Carrier Safety Administrator Anne S. Ferro, in a release. "Requiring seat belts in new models is another strong step we are taking to reach an even higher level of safety for bus passengers." The rule will apply to buses with a gross vehicle weight rating (GVWR) greater than 26,000 pounds,) excluding transit buses and school buses. Read more on transportation.
Study: Women With Breast Cancer Should Get Mammograms Every 12 to 18 Months
Breast cancer patients should undergo mammograms every 12 to 18 months to determine whether their cancer has spread to the lymph nodes, according to a new study to be presented today at the annual meeting of the Radiological Society of North America. Study researcher Lilian Wang, MD, evaluated more than 300 women who were diagnosed with breast cancer because of a routine mammogram, dividing them into three groups based on their treatment history. She found that only 9 percent of the women who had 12- to 18-month intervals between mammograms saw their cancer spread to their lymph nodes; the rates were 21 percent for those who waited one-and-a-half to three years and 15 percent for those who waited three or more years. "If you catch someone with early stage cancer, they are going to need less extensive surgery, and maybe no chemo," said Laura Kruper, MD, director of the Cooper-Finkel Women's Health Center at the City of Hope Cancer Center, in Duarte, Calif., who was not a part of the study. "[The new study] adds more power behind the fact that we do need screening mammograms starting at age 40 and every year.” Read more on cancer.
FDA: Certain HeartStart AEDs May Not Work During Cardiac Emergencies
The U.S. Food and Drug Administration (FDA) announced yesterday that certain automated external defibrillator (AED) devices made by Philips Medical Systems may not function properly when needed. In a new safety communication, FDA revealed that the devices may not deliver the needed shock to restore normal heart rhythm during a cardiac emergency. “The FDA advises keeping all recalled HeartStart AEDs in service until you obtain a replacement from Philips Healthcare or another AED manufacturer, even if the device indicates it has detected an error during a self-test,” said Steve Silverman, director of the Office of Compliance in the FDA’s Center for Devices and Radiological Health. “Despite current manufacturing and performance problems, the FDA considers the benefits of attempting to use an AED in a cardiac arrest emergency greater than the risk of not attempting to use the defibrillator.” Read more on heart health.
Chicago Announces Trio of Anti-tobacco Initiatives to Curb Youth Smoking
The city of Chicago and Mayor Rahm Emanuel this morning announced a trio of anti-tobacco initiatives designed to reduce youth access to tobacco. The first would regulate e-cigarettes as tobacco products, while the second would restrict the sale of flavored tobacco products near schools and the third would work to educate the public on the dangers of menthol-flavored cigarettes. Further details:
- By defining “tobacco products” as products that are made of tobacco or include tobacco-derived nicotine, the city would be able to regulate e-cigarettes as they do any other tobacco product. This would mean that under the Chicago Clean Indoor Air Act, e-cigarette use would be restricted everywhere where smoking is restricted, including almost all public places and places of employment.
- Flavored tobacco products, including menthol products, could not be sold within 500 feet of schools, and existing stores would not be grandfathered in. This would be the first regulation of menthol-flavored cigarettes anywhere at the federal, state or local levels.
- Understanding that menthol-cigarettes are often—and wrongly—viewed as less unhealthy than other tobacco products, as well as that fact that the flavoring makes them more appealing to kids, the city is launching a public service advertising campaign on the realities of the products.
“E-cigarettes, as well as flavored products, are gateway tobacco products targeted at our kids,” said Emanuel. “The tobacco industry has spent years developing products that are aimed at hooking our youth on nicotine and getting them smoking for their entire life.” Read more on tobacco.
FDA to Investigate Reports on Weight-related Problems with the Morning-After-Pill
Following yesterday’s report that the European equivalent of the Plan B One-Step “morning after pill,” Norlevo, is less effective for women who weigh 165 pounds or more and ineffective for women who weigh 176 pounds or more, the U.S. Food and Drug Administration (FDA) has announced it will perform its own investigation into the product. The agency is "currently reviewing the available and related scientific information on this issue, including the publication upon which the Norlevo labeling change was based," said FDA spokeswoman Erica Jefferson said in a Monday statement. "The agency will then determine what, if any, labeling changes to approved emergency contraceptives are warranted." By law, the morning-after pill is available to all U.S. women of child-bearing age, over the county and with no point-of-sale restrictions. Read more on sexual health.
Concerns Over Cost, Sexual Activity Keep Many Parents From Having Kids Vaccinated Against HPV
Costs and parental concern over their kids’ sexual activity may be the reason that so view children—both girls and boys—are not being vaccinated against the human papillomavirus (HPV), according to a new review of 55 studies appearing in JAMA Pediatrics. HPV vaccines protect against the strains of genital warts that cause approximately 70 percent of cervical cancers, and they are recommended for girls aged 11 to 12. Boys are recommended to receive the vaccine as young as age 11, as it protects not just against genital warts, but also oral, penis and rectal cancers. However, the review found that many parents put off the vaccination either because they believe their child is not sexually active—so doesn’t “need” the vaccine—or because they fear it will encourage them to become sexually active. Researchers determined that a physician’s recommendation was one of the strongest motivators toward deciding to accept the vaccination, although this did not happen nearly enough. The researchers recommended improving these statistics by educating doctors and parents on the importance of the vaccine. Read more on cancer.
Survey: Violence in PG-13 Films Tripled in Past Two Decades
When the movie rating PG-13 debuted, PG-13 movies and R movies tended to have about the same amount of gun violence. Today PG-13 sometimes have more gun violence than R movies, and the overall amount of gun violence in the movies approved for the younger demographic has more than tripled in the past two decades, according to a new study in the journal Pediatrics. The researchers looked at 945 films sampled from the 30 top-grossing films annually between 1950 and 2012. "It doesn't take a lot of imagination to figure out there are going to be disturbed kids who are going to see this kind of content," said Daniel Romer, of the University of Pennsylvania's Annenberg Public Policy Center in Philadelphia. "The problem for parents is they can no longer rely on the PG-13 rating to tell them there isn't a lot of violence in those films.” James Sargent, MD, from the Geisel School of Medicine at Dartmouth and the Norris Cotton Cancer Center in Lebanon, New Hampshire, who was not involved in the study, said the findings demonstrate that the Motion Picture Association of America needs "to go back to the drawing board and fix their rating system so those movies are rated R for violence." Read more on violence.
New Federal Rules Ensure Mental Health Treatment Equal to Physical Health in Health Plans
New rules issued by the U.S. Departments of Health and Human Services, Labor and the Treasury on Friday will ensure that mental health is treated equal to physical health when it comes to co-pays, deductibles and visit limits that are features of health plans. Among the specific protections:
- Ensuring that parity applies to intermediate levels of care received in residential treatment or intensive outpatient settings
- Eliminating the provision that allowed insurance companies to make an exception to parity requirements for certain benefits based on “clinically appropriate standards of care,” which clinical experts advised was not necessary and which is confusing and open to potential abuse
- Clarifying the scope of the transparency required by health plans, including the disclosure rights of plan participants, to ensure compliance with the law
“These rules will increase access to mental health and substance abuse treatment, prohibit discriminatory practices, and increase health plan transparency,” said Labor Secretary Thomas E. Perez. “Ultimately, they’ll provide greater opportunities for affordable, accessible, effective treatment to Americans who need it.” Read more on access to health care.
Women of Limited Financial Means Often Wait to Seek Help with Breast Lumps
High costs of examination and treatment may be keeping younger women with limited finances from seeking early medical attention for breast lumps, according to a new study in the journal Cancer. Researchers found in a survey of women aged 40 and younger that while 80 percent found an abnormality in their breast on their own, 17 percent waited at least three months before seeing a doctor, with 12 percent of those who delayed treatment also having to wait at least 90 days between their appointment and receiving a diagnosis. Kathryn Ruddy, MD, of the Mayo Clinic in Rochester, Minn., said that future development of interventions should focus on this financial disparity that is also a health disparity. "The findings may lead to research focusing on whether reducing co-pays and hidden costs of seeking medical care—such as parking charges, child-care expenses and lost wages—may improve the timeliness of diagnosis in this population," she said. Read more on cancer.
FDA Takes Another Step to Reduce Consumption of Trans Fats
The U.S. Food and Drug Administration has taken another step to reduce American’s consumption of trans fats with a preliminary determination that partially hydrogenated oils (PHOs) are not “generally recognized as safe” for use in food. PHOs are the primary dietary source of artificial trans fat in processed foods. Up next is a 60-day comment period to collect more information and input on exactly what it would take for food manufacturers to reformulate products so that they do not include PHOs. “While consumption of potentially harmful artificial trans fat has declined over the last two decades in the United States, current intake remains a significant public health concern,” said FDA Commissioner Margaret A. Hamburg, M.D. “The FDA’s action today is an important step toward protecting more Americans from the potential dangers of trans fat. Further reduction in the amount of trans fat in the American diet could prevent an additional 20,000 heart attacks and 7,000 deaths from heart disease each year—a critical step in the protection of Americans’ health.” Read more on food safety.
Lack of Light Disrupts Sleep Cycles During Hospital Stays, Increases Patient Discomfort
Hospital stays may be even more uncomfortable for most patients than necessary because of an overall lack of adequate light, according to a new study in the Journal of Advanced Nursing. The small study found that lower levels of daytime light exposure were connected to worse mood, as well as more fatigue and pain, in patients. The poor light interfered with their bodies’ ability to adopt a normal sleep-wake cycle. Researchers found the lowest levels of daytime light exposure were tied to worse mood and more fatigue and pain among patients, compared to those whose rooms were better-lit during the day. "Until now, no one has looked at the associations among light and outcomes such as sleep, mood and pain experienced in the hospital," said Esther Bernhofer, lead author of the study and a nurse researcher at the Cleveland Clinic's Nursing Institute. "This study forms a basis for testing future lighting interventions to improve sleep-wake patterns, mood and pain in hospitalized adults.” Read more on mental health.
Study: No Link Between IVF, Increased Risk of Cancer in Kids
Despite years of concerns, a new study on in vitro fertilization (IVF) found no link between the conception technique and an increased risk of cancer in children. The findings were published in the New England Journal of Medicine. Researchers analyzed data on more than 106,000 children born through assisted reproduction between 1992 and 2008, finding the risk of them developing cancer was "the same as naturally conceived children," according to lead researcher Alastair Sutcliffe, MD, a specialist in general pediatrics at the University College London. More than 5 million children have been born through IVF since the first successful birth in 1978. "This study is extremely reassuring and should relieve anybody's anxiety about IVF," concluded Lawrence Grunfeld, MD, an associate clinical professor of obstetrics, gynecology and reproductive science at the Mount Sinai Icahn School of Medicine, in New York City. Read more on cancer.
BSR: New Ways U.S. Companies Can Improve Population Health
U.S. companies can improve population health by improving how they engage with employees, customers, local communities, suppliers and the general public, according to a new BSR report supported by a grant from the Robert Wood Johnson Foundation. BSR interviewed 40 leading authorities on health and wellness, public health, corporate social responsibility and corporate affairs, as well as reviewed more than 35 corporate CSR reports across 10 industries and surveyed nearly 30 U.S.-based BSR member companies about their current activities on health and wellness. The report emphasizes how CSR teams can help lead the charge in improving population health. “Within business, the corporate social responsibility (CSR) teams are well-positioned to lead this work—helping their companies look carefully at the positive as well as negative impacts on health and wellness, and helping them identify opportunities to deliver better business results and health outcomes,” said Mark Little, BSR’s healthcare director. Read more on business.
CDC: Colorectal Cancer Screening Rate Remains Low
Despite continued research showing that colorectal cancer screening tests saves lives, as many as one in three adults ages 50 to 75 have not been tested, according to a new Vital Signs report from the U.S. Centers for Disease Control and Prevention (CDC). The cancer type is the second-leading cause of death for both men and women in the United States, and screening can help prevent it or even detect it early, when treatment is more effective. “There are more than 20 million adults in this country who haven’t had any recommended screening for colorectal cancer and who may therefore get cancer and die from a preventable tragedy,” said CDC Director Tom Frieden, MD, MPH. “Screening for colorectal cancer is effective and can save your life.” the United States Preventive Services Task Force recommends that all adults age 50 and older be screened by at least one of three tests, which can variously be performed at home or by a doctor, and once every year, three years or decade. Read more on cancer.
Study: Eating Disorders in Young Men Often Different Than Those in Women
While not as widely discussed or researched, young men—just like young women—can become obsessed with their appearance and develop dangerous eating disorders, according to a new study in the journal JAMA Pediatrics. The problem can resemble a traditional eating disorder such as anorexia nervosa or bulimia nervosa, or involve the use of drugs and supplements. The disorders are often paired with depression, binge drinking and recreational drug use. The researchers’ survey of 5,527 boys, ages 12-18, found that 31 percent had at some point binged on food or purged, 9 percent had a high level of concern with their body's muscularity and about 2 percent were both concerned about muscularity and had used some type of supplement, growth hormone derivative or anabolic steroid to enhance it. "The results of our studies would suggest we need to be thinking more broadly about eating disorders and consider males as well," said Alison Field, the study's lead author and an associate professor of pediatrics at Boston Children's Hospital. "For a lot of males, what they're striving for is different than females. They're probably engaged in something different than purging." Read more on pediatrics.
Firearm Injuries Cost $16B in U.S. Health Care in Less than a Decade
Firearm injuries cost more than $16 billion in hospital care between from 2000 to 2008, according to new research to be presented today at the American Public Health Association’s 141st Annual Meeting in Boston. The 275,939 victims spent approximately 1.7 million days in the hospital, for an average stay of 6.7 days and an average cost of medical treatment of $59,620. About one in three patients did not have insurance. “The impact is probably much higher than $16 billion since the years of life lost, disability, lack of productivity, societal well-being and emotional turmoil associated with such injuries is far-reaching,” said Min Kyeong Lee, DMD, Annual Meeting presenter. “This is one of the foremost reasons why health care costs in this country have gotten out of control and underlies the need for better preventive policies.” Read more on violence.
Study: Secondhand Smoke in the Workplace Down Overall, But Certain Groups Still at Risk
While recent policies and regulations have helped reduce the overall exposure rates of secondhand smoke in the workplace, certain professions continue to experience high rates, according to new findings to be presented today at the American Public Health Association’s 141st Annual Meeting. The study looked at exposure rates in Massachusetts since 2004, when its Smoke-Free Workplace Law was enacted to require all enclosed workplaces to be smoke free. However, that means that workers in installation, repair and maintenance still experience an overall secondhand smoke exposure rate of 37.4 percent; the national rate in 2010 was 5.4 percent. “We’re seeing a steady decline in prevalence of exposure, but it’s clear that there are still specific groups of workers that deserve our attention,” said Kathleen Fitzsimmons, MPH, lead researcher of the study. “Findings like these that combine information about occupation and environmental tobacco smoke provide helpful information for evaluating comprehensive statewide smoke-free workplace laws and for targeting interventions to reduce risks.” Read more on tobacco.
Study: HPV Screenings Better than Pap Tests at Protecting Against Invasive Cervical Cancer
Human papillomavirus (HPV) screenings are both more effective than Pap tests when it comes to screening against invasive cervical cancer, according to a new study in the journal The Lancet. Researchers analyzed the results of four clinical trials in Europe covering more than 175,000 women ages 20 to 64. The studies tracked them women for an average of 6.5 years after one of the screening types, finding that they were about equal in protection levels for the first 2.5 years, but that following that short time frame HPV screening provided as much as 70 percent greater protection. The findings were particularly significant in women ages 30 to 35. Read more on cancer.
HPV Vaccines Less Effective in African-American Women than in White Women
Perhaps because of their lower participation rates in clinical trials, African-American women are less likely to benefit from available human papillomavirus (HPV) vaccines that guard against cervical cancer, according to new findings presented at the 12th annual International Conference on Frontiers in Cancer Prevention Research. The two most popular vaccines in use protect against infection by HPV 16 and HPV 18, which are responsible for about 70 percent of cervical cancers. However, these two subtypes are half as likely to be found in black women as they are in white women. Researchers found that the most common infections for white women are from subtypes 16, 18, 56, 39 and 66; the most common for black women are 33, 35, 58 and 68. "Since African-American women don't seem to be getting the same subtypes of HPV with the same frequency, the vaccines aren't helping all women equally," said study author Adriana Vidal, Ph.D., assistant professor of obstetrics and gynecology at Duke University School of Medicine. Read more on health disparities.
San Francisco Proposes Tax on Soda, Other Sugary Beverages
In an effort to curb the growing rate of obesity and obesity-related health issues, a San Francisco, California city supervisor has proposed a ballot measure that would impose a 2-cents-per-ounce tax on soda and other sugary beverages with at least 25 calories per ounce. This would be the first and strongest such city measure in the country, amounting to an additional 24 cents for a normal 12-ounce can of soda. Supervisor Scott Wiener said the tax proceeds, which he estimates would be $30 million annually, would go toward physical education and healthy lunch programs in city schools, as well as city parks, recreation programs and community health organizations. The California cities of Richmond and El Monte last year failed to enact similar taxes. A ballot measure requires a two-thirds majority to pass. "We know that this will be a long road," said Wiener. "This type of proposal has occurred in other cities and the beverage industry always comes out full guns blaring, so we're going to need to pull together to make sure that this wins." Read more on obesity.
Study: Young Cancer Patients at Increased Risk for Suicide
The stress of a cancer diagnosis means that teens and young adults who are diagnosed should be carefully monitored for behavior changes and other issues that could be a sign of suicidal thoughts, according to a new study in the Annals of Oncology. While there is an elevated risk of suicide for cancer patients of all ages, “because adolescents and young adults are still developing their coping strategies for stress, they may be more affected than adults when facing major adversity such as a cancer diagnosis," said lead researcher Donghao Lu, from the department of medical epidemiology and biostatistics at the Karolinska Institute in Stockholm, Sweden. Lu and his team found that Swedes ages 15-30 with a cancer diagnosis were at a 60 percent greater risk of suicide or attempted suicide, compared to people in the same age group but without cancer; in the first year after the diagnosis the risk was 150 percent higher. Lu said the findings indicate the need for greater communication and cooperation among medical professionals, psychological professionals, family members and social workers. Read more on cancer.
Study: Erratic Bedtimes Linked to Kids’ Behavior Problems
Children with erratic bedtimes also exhibit more behavior problems at home and at school, according to a new study in the journal Pediatrics. Researchers analyzed date on more than 10,000 children who were part of long-term sleep studies, finding that kids without a regular bedtime scored worse on a measure of behavior problems including acting unhappy, getting into fights and being inconsiderate. "If you are constantly changing the amounts of sleep you get or the different times you go to bed, it's likely to mess up your body clock," said study leader Yvonne Kelly, from University College London. "That has all sorts of impacts on how your body is able to work the following day," Kelly, from University College London.” However, the researchers also found that when a child went from no set bedtime to a scheduled bedtime, their behavior improved. Read more on pediatrics.
Overweight Teens at Increased Risk of Later Esophageal Cancer
People who are overweight or obese as teens have nearly twice the risk of developing esophageal cancer later in life when compared to their peers with healthy weights, according to a new study in the journal Cancer. The study also found that social status, economic status and education levels can all be factors in the development of gastric cancers; poor teens are at twice the risk of developing stomach cancer, as are teens with nine years of fewer of education. The study included more than 1 million male Israeli teens. "We look at obesity as dangerous from cardiovascular aspects at ages 40 and over, but here we can see that it has effects much earlier," said study author Zohar Levi, MD, of the Rabin Medical Center in Israel. However, the study did not prove cause-and-effect, so further research is needed to determine whether losing weight or gaining higher social or economic status later in life can reduce the risks. Read more on cancer.
USDA: California Plants Linked to Salmonella Can Stay Open
After making “immediate substantive changes to their slaughter and processing,” three California poultry processing plants tied to a salmonella outbreak in 17 states will remain open, the U.S. Department of Agriculture (USDA) has determined. The plants will implement new food safety controls and the USDA will monitor the plants products for the next three months. The outbreak has sickened 278 people since May; the normal hospitalization rate is about 20 percent, but antibiotic resistance means about 42 percent of the people sickened in this outbreak were hospitalized. Read more on food safety.
Four U.S. Regions on Alert for Severe Weather this Weekend
Severe weather is expected to impact at least four regions of the United States this weekend. That includes a tropical storm—downgraded from a hurricane for now—in the Gulf Coast; a tornado threat in the Midwest; early snow in the West that, in part because trees still have leaves that can be weighed down by wet snow, could lead to power outages; and spreading fires in California fueled by dry weather. The Federal Emergency Management Agency (FEMA) has already recalled some furloughed staff to prepare for the storms expected on the Gulf Coast. Read more on preparedness.
Study: Unnecessary Antibiotic Prescriptions Remain High, Endanger Public Health
Despite ongoing efforts by the U.S. Centers for Disease Control and Prevention (CDC) and other public health organizations, doctors continue to overprescribe antibiotics for sore throats, increasing the risk of the development of antibiotic-resistant bacteria, according to a new study in JAMA Internal Medicine. “Our research shows that while only 10 percent of adults with sore throat have strep, the only common cause of sore throat requiring antibiotics, the national antibiotic prescribing rate for adults with sore throat has remained at 60 percent,” said senior author Jeffrey A. Linder, MD, MPH, a physician and researcher in the Division of General Medicine and Primary Care at Brigham and Women’s Hospital. “For acute bronchitis, the right antibiotic prescribing rate should be near zero percent and the national antibiotic prescribing rate was 73 percent.” The researchers said the findings demonstrate the need to study and implement new interventions to reduce unnecessary antibiotic prescriptions. Read more on infectious disease.
Daily Walks Can Reduce Breast Cancer Risk for Older Women
Post-menopausal women can reduce their risk of developing breast cancer through physical activity as simple as a daily walk, according to a new study in Cancer Epidemiology, Biomarkers & Prevention. More intense exercise may have an even more profound impact. "The nice message here is, you don't have to go out and run a marathon to lower your breast cancer risk," said study researcher Alpa Patel, senior epidemiologist at the American Cancer Society, which funded the study. "Go for a nice, leisurely walk an hour a day to lower risk.” However, the study authors noted that they found only a correlation, not a causation, so further study is needed. Experts believe the reason exercise reduces breast cancer risk is related to hormones; they also recommend maintaining a healthy body weight and minimizing the consumption of alcohol as ways to reduce the risk of breast cancer. Read more on cancer.