health

Your Clean House Could Be Hurting Your Lungs

Ask the Doctors by by Eve Glazier, M.D. and Elizabeth Ko, M.D
by Eve Glazier, M.D. and Elizabeth Ko, M.D
Ask the Doctors | July 12th, 2019

Dear Doctor: How bad are cleaning products for our lungs? My mom keeps talking about a news story that said chemicals in cleaning products are as dangerous as cigarettes. Is my clean kitchen killing me?

Dear Reader: Your mom is referring to the results of a study published last year that found that not only do cleaning products harm the respiratory system, they seem to adversely affect women more than men.

The study, conducted by researchers from the University of Bergen in Norway, assessed the lung health of more than 6,200 women and men over the course of two decades. Among the information the participants were asked to provide was how often they cleaned with chemical products, how much of each product they used, and whether or not they were professional house cleaners. Lung function was regularly assessed, including by measuring the volume of air each person could forcibly breathe out in a single exhale. When the data was analyzed, researchers found that cleaning with chemical products as little as once a week resulted in an increased risk of decline in lung function. More frequent use of chemicals came with a greater risk of decline. The researchers said using cleaning products for 20 years had the same adverse effects on the lungs as smoking 20 cigarettes a day for two decades.

Interestingly, although men who used cleaning products and worked as professional cleaners also experienced a decline in lung function, it was less severe than the effects seen in women.

Previous studies have identified a link between the chemicals in household cleaners and respiratory conditions like asthma, headache, migraine and allergies. This is believed to be due to the caustic agents in the products, such as bleach, ammonia and other volatile organic compounds (VOCs). These can irritate and even injure the sensitive mucosal linings of the respiratory tract. Over time, this may lead to persistent changes at the cellular level that adversely affect lung function. Also at issue are the delivery methods of cleaning products, such as aerosol sprays. With a single push of the button, these can turn harsh chemicals into a mist of billions of easily breathable particles.

The authors of the study urged health officials to consider the strict regulation of cleaning products in order to protect consumers, and asked manufacturers to move away from aerosol products. Until that day, however, there are a few steps you can take at home to protect yourself. Consider wearing a dust mask or particulate filter while cleaning. These are widely available at hardware and home improvement stores, come in several types and styles, and are rated according to the substances that they filter.

No doubt you’ve heard it before, but never use cleaning products in an enclosed space. Open a window or door, or set up a fan to keep fresh air circulating.

Consider going old-school with soap and water, baking soda for scrubbing, and a water and vinegar solution for windows and mirrors. If you just can’t give up commercial products, visit epa.gov/saferchoice to find the safest ones.

(Send your questions to askthedoctors@mednet.ucla.edu, or write: Ask the Doctors, c/o UCLA Health Sciences Media Relations, 10880 Wilshire Blvd., Suite 1450, Los Angeles, CA, 90024. Owing to the volume of mail, personal replies cannot be provided.)

health

Study Links Fracking to Low Birth Weight

Ask the Doctors by by Eve Glazier, M.D. and Elizabeth Ko, M.D
by Eve Glazier, M.D. and Elizabeth Ko, M.D
Ask the Doctors | July 10th, 2019

Dear Doctor: Fracking just started near my Ohio hometown, and I remember reading about a connection to the risk of having a baby with low birth weight. I want to get pregnant, but now I’m worried. How close do you have to be to a site to be affected?

Dear Reader: "Fracking" is the common term for hydraulic fracturing, a drilling process that pumps fluid at ultra-high pressure deep into the earth. This fractures the underlying shale rock and makes the natural gas or oil that it contains available for extraction. There has been no end of controversy regarding the process in recent years, with vigorous debate over whether or not fracking causes air pollution, contaminates surface and groundwater, leads to earthquakes and plays a role in a range of health problems. Among the health questions that have been raised is whether the process affects birth weight among pregnant women who live near fracking sites.

Your question refers to a study published a few years ago in the journal Science Advances. The researchers, including one from UCLA, analyzed the outcomes of 1.1 million live births in Pennsylvania between 2004 and 2013. They compared the birth weights of infants born to mothers living at varying distances from active fracking sites, both before the extraction operations had begun, and after the wells became active. They found that women who lived very close to an active fracking operation -- within one-half mile -- had a 25 percent higher risk of delivering a baby of low birth weight than did women who lived at a distance of 2 miles or more.

The study found that babies born to women who lived more than one-half mile from a fracking site, but less than 2 miles away, were also adversely affected, but to a lesser degree. When researchers looked at women who lived at least 2 miles from a fracking operation, they found no signs of adverse health effects to newborns.

"Low birth weight" is the term used to describe an infant who weighs less than 5 pounds, 8 ounces at delivery. By contrast, the average healthy newborn weighs in at about 8 pounds. Low birth weight occurs most often in premature births, when the infant doesn’t have the full 37 weeks of gestation to grow and gain weight. Low birth weight is sometimes seen in full-term babies who failed to grow well during gestation due to issues with the mother’s health, the placenta or the baby’s condition. Multiple births also often result in smaller babies.

The reason low birth weight is a concern is that smaller babies are at greater risk of complications after delivery, including low oxygen levels, difficulty feeding, gastrointestinal problems and SIDS, or sudden infant death syndrome. Low birth weight has also been shown to be a risk factor for future health and developmental problems such as asthma, Type 2 diabetes, attention deficit disorder, learning disabilities and hyperactivity.

Although the study correlates proximity to fracking sites with low birth weight, it doesn’t explain what is causing these outcomes. The authors agree that more information is needed, and have said they hope their study will lead to further research.

(Send your questions to askthedoctors@mednet.ucla.edu, or write: Ask the Doctors, c/o UCLA Health Sciences Media Relations, 10880 Wilshire Blvd., Suite 1450, Los Angeles, CA, 90024. Owing to the volume of mail, personal replies cannot be provided.)

health

Getting Enough Potassium Requires More Than a Supplement

Ask the Doctors by by Eve Glazier, M.D. and Elizabeth Ko, M.D
by Eve Glazier, M.D. and Elizabeth Ko, M.D
Ask the Doctors | July 8th, 2019

Dear Doctor: Your recent column about how potassium can help lower blood pressure was quite helpful, but when I looked into supplements, they turned out to be almost useless. Why is that? What foods should I be eating?

Dear Reader: Potassium is a mineral that plays a key role in the optimal functioning of nerves, muscles, fluid balance, and, as we wrote about recently, the regulation of blood pressure. Although it’s found in a wide range of whole foods, Americans’ ongoing love affair with highly processed and fast foods has led to diets that fall short of adequate potassium.

The most recent guidelines for daily potassium intake were released last March by the National Academies of Science, Engineering and Medicine. They recommend a minimum of 2,300 milligrams per day for healthy women, and 3,400 mg per day for healthy men. These newest recommendations are lower than those previously established in 2005.

Unfortunately, according to the National Institutes of Health, the majority of Americans get less than half the amount of the mineral that they need. It seems logical that, since you can boost your intake of just about any vitamin or mineral with a supplement, you should be able to do the same with potassium. However, it’s not that simple. Potassium has the potential to interact with a variety of medications, including blood pressure meds, diuretics and some common pain medications. Depending on the specific medication, it can result in potassium levels that are dangerously high or dangerously low. Too much or too little potassium can lead to muscle cramping, nerve problems, problems with cognition and potentially life-threatening heart arrhythmias. As a result, the U.S. Food and Drug Administration requires over-the-counter potassium supplements, including multivitamins, to contain less than 100 mg, which is a fraction of the recommended daily intake.

The good news is that by eating a diet that draws from a wide variety of whole and fresh foods, you can meet your daily potassium needs. Foods that contain high or moderate levels of potassium include fish like salmon, tuna, cod and snapper; most red meats; leafy greens like spinach and chard; black beans, pinto beans and white beans; avocados; bananas; apricots; potatoes; tomato sauce and tomato paste; watermelon; lentils; cantaloupe; yogurt; and coconut water. One quick and easy way to give a meal a potassium boost is with frozen spinach, which can easily be added to soups and stews and used as a side dish. Beans, beets and avocados make great additions to salads. Try swapping out sweet or salty ultra-processed snacks for cantaloupe or watermelon.

While you’re busy revving up your potassium intake, don’t forget to continue to be vigilant about salt. The American Heart Association wants adults to eat no more than 2,300 mg of sodium per day, and recommends we stick closer to a limit of 1,500 mg per day -- or less. This is particularly important for people dealing with high blood pressure, or those who are at risk of cardiovascular disease.

Although getting enough potassium without the help of supplements may seem daunting at first, deliberate food choices and just a bit of advance planning will get you into the zone.

(Send your questions to askthedoctors@mednet.ucla.edu, or write: Ask the Doctors, c/o UCLA Health Sciences Media Relations, 10880 Wilshire Blvd., Suite 1450, Los Angeles, CA, 90024. Owing to the volume of mail, personal replies cannot be provided.)

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