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'BPA-Free' Bottles Might Need a Run Through Your Dishwasher First

It's a good idea to run drinking bottles you think are BPA-free through the dishwasher several times before using them, a new study suggests.

University of Cincinnati researchers found that some supposedly BPA-free water bottles contain traces of the chemical, which is believed to pose a health risk.

For the study, they analyzed water bottles bought in other countries and expected t...

Volunteer Firefighters Have High Levels of Potentially Toxic Chemicals

Volunteer firefighters have higher levels of so-called "forever chemicals" in their bodies than the general population does, a new study finds.

It also found that levels of these potentially toxic per- and polyfluoroalkyl substances (PFAS) in volunteer firefighters' bodies rise with years of service.

PFAS are found in everyday items like electronics and carpeting, and they have been...

Workers' Deaths From Paint Stripping Chemicals Are on the Rise

WEDNESDAY, April 21, 2021 (HealthDay News) -- A deadly chemical in paint strippers continues to kill workers despite its known dangers, a new study finds.

The chemical methylene chloride, also known as dichloromethane (DCM), is a solvent found in paint strippers, cleaners, degreasers, adhesives and sealants. When inhaled, it produces large quantities of carbon monoxide ...

A Woman's Exposure to DDT Could Affect Her Granddaughter's Health Today

A long-banned pesticide may be having health effects that ripple across generations, a new study suggests.

At issue is DDT, a once widely used pesticide that was banned in the United States in 1972. That ban, however, was not the end of the story.

DDT is a persistent organic pollutant, a group of chemicals that are slow to break down and linger in the environment for years. So ...

Common Household Chemicals Tied to Preemie Births

Even when women do their best to have a safe pregnancy, chemicals commonly found in the home could still raise their risk for premature delivery, a new study shows.

The chemicals -- called polybrominated diphenyl ethers (PBDEs) -- are used as flame retardants in items like furniture and carpets.

For the study, researchers analyzed blood samples from over 3,500 pregnant women, includ...

Formaldehyde in Hair Straighteners Prompts FDA Warning

You might decide your frizzy locks aren't so bad after all, given a new warning from the U.S. Food and Drug Administration that most hair straightening/smoothing products release formaldehyde gas, a human carcinogen.

Being exposed to formaldehyde for longer periods of time and at higher concentrations increases the health risks, according to the FDA.

Formaldehyde exposure can ...

Catnip Might Be Your Next Mosquito Repellent

A common herb that makes your favorite feline high may hold the key to a mosquito-free summer in your backyard.

Researchers say catnip is as effective as synthetic insect repellents, including DEET, and they report why this common member of the mint family drives bugs positively buggy.

The active ingredient in catnip -- nepetalactone -- activates an ancient pain receptor found in an...

Drivers May Be Inhaling Dangerous Carcinogens Inside Their Cars

Worried about what damage the polluted air outside might pose to your health during your work commute? New research suggests you might want to worry more about the chemicals you are exposed to inside your car.

Benzene and formaldehyde are used in automobile manufacturing, and both are known to cause cancer at or above certain levels of exposure. Benzene also poses a risk of repro...

Pandemic Has People Cleaning, and That Means More Asthma Attacks

The coronavirus pandemic has turned many people into clean freaks, but new research suggests that deploying all those extra household disinfectants might be triggering asthma flare-ups.

"We became concerned with increased cleaning and disinfecting related to the COVID-19 pandemic, combined with people spending more time indoors may expose people with asthma to more environmental triggers ...

Hand Sanitizer Is Harming Kids' Eyes, Often Seriously

The explosive rise in use of alcohol-based hand sanitizers during the COVID-19 pandemic has had a dangerous, unintended consequence: eye injuries among children.

Using data from French poison control and a children's hospital in Paris, researchers reported that accidental eye injuries to kids under age 18 shot up sevenfold during a five-month period last year, compared to 2019.

Vaping May Addle the Adolescent Brain

Teenagers who use e-cigarettes may be at increased risk of "mental fog," a new study suggests.

The study, of thousands of U.S. teens, found that those who vaped were three times more likely than their peers to report problems with concentration, memory and decision-making.

The findings mirror those of a recent study of adults by the same research team: Men and women who used e-...

Microplastics Are Seeping Out of Baby's Bottle, Study Shows

New parents preparing a bottle for their baby should know the infant may ingest unwanted microplastics along with the nourishing formula, a new study warns.

High levels of microplastic particles are released from baby bottles during formula preparation, researchers discovered during lab testing.

Infants are likely exposed to an average daily dose of nearly 1.6 million microp...

No Link Between Permanent Hair Dyes and Cancer: Study

Millions of people color their own hair, even though some of the chemicals in permanent hair dyes are considered possible carcinogens.

So, is home hair coloring safe?

According to a new study, the answer is a qualified yes.

After tracking cancer risk among more than 117,000 U.S. women for 36 years, the investigators found that personal use of permanent hair dyes wa...

Toxins Form When E-Cigarette Chemicals Mix, Study Says

There's more bad news about electronic cigarettes: Researchers have identified previously unknown toxins that can affect the heart and lungs of those who vape.

The chemicals form when manufacturers combine flavorings with solvents in e-cigarettes, according to the study. These chemicals can irritate the airways and trigger reactions that result in breathing, heart and blood vessel pro...

Harmful Flame Retardants Detected in College-Classroom Dust

Indoor spaces often contains harmful chemicals, say researchers who found high levels of toxic flame retardants in the dust of some U.S. college classrooms.

The chemicals have been linked to thyroid disease, infertility, decreased IQ, cancer and other health problems. They were released by furniture in the facilities.

When they get into dust, the chemicals can enter your bod...

Hot Asphalt Releases a Lot of Pollution Into the Air

Asphalt baking in the summer sunshine is no fun for tender feet, but a new study suggests it's not doing your lungs any favors either.

As it heats up, asphalt releases chemical compounds that contribute to air pollution. And its emissions double as its temperature increases from 104 to 140 degrees Fahrenheit, researchers found.

Sunlight plays a key role in these asphalt emis...

Autopsies Show Microplastics in All Major Human Organs

Microscopic bits of plastic have most likely taken up residence in all of the major filtering organs in your body, a new lab study suggests.

Researchers found evidence of plastic contamination in tissue samples taken from the lungs, liver, spleen and kidneys of donated human cadavers.

"We have detected these chemicals of plastics in every single organ that we have investigat...

Fireworks Are Bad News for Your Lungs

A new threat has been added to the risks posed by fireworks -- they can release toxic metals that can damage your lungs.

These metals give fireworks their colors, according to researchers who found harmful levels of lead in two of 12 types of commercially available fireworks they tested.

"While many are careful to protect themselves from injury from explosions, our results s...

There's Another Benefit to Hand-Washing During Pandemic

Washing your hands more often may do more than slow the spread of COVID-19: New research suggests it also lowers your exposure to toxic flame retardants.

How? Scientists found that halogenated flame retardants used in plastic TV cases can travel from the TV to indoor air and dust, then to hands, and then to electronic devices such as cellphones.

That means that you can be ex...

Bleach on Fruit, Lysol Gargles:  Many Getting Home Disinfection Dangerously Wrong

Nearly two out of five Americans are using bleach and other household cleaners in potentially dangerous ways in an effort to protect themselves against COVID-19 infection, a new survey reveals.

About 20% Americans say they have applied bleach to their fruits and vegetables as a means of disinfection, a practice not recommended by the U.S. Centers for Disease Control and Prevention...

Could Certain Chemicals Trigger Celiac Disease?

Toxic chemicals in a wide range of products are associated with an increased risk of celiac disease in children and young adults, researchers say.

People with celiac disease -- an immune disorder -- can't tolerate foods that contain gluten, a protein found in wheat, rye and barley.

New York University researchers analyzed the blood of 30 children and young adults newly diagn...

Replace That Old Carpet to Shield Your Kids From Toxins

If you have kids and carpets, it might be time to redecorate. Older carpets are a major source of kids' exposure to harmful chemicals known as PFAS, researchers say.

PFAS (per- and polyfluoroalkyl substances) are associated with serious health risks in kids and adults, including impaired neurodevelopment, immune system dysfunction, hormone disruption and cancer.

The chemical...

As Coronavirus Fears Surge, Keep Cleaning Products Away From Children

The coronavirus pandemic has triggered a wave of accidental poisonings from household cleaners and disinfectants.

With the National Poison Data System recently reporting a more than 20% spike in such emergencies, the American Cleaning Institute (ACI) emphasized the need to store cleaning products safely away from children.

Bleach and alcohol-based hand sanitizers accoun...

Laser Process May Kill Bacteria on Metal Surfaces

Researchers have come up with a new twist on antibacterial technology.

By giving a metal surface a different texture, the team at Purdue University in Indiana said it may be possible to turn that surface into an immediate bacteria killer.

The technique won't kill viruses like the one responsible for the COVID-19 pandemic, because they are much smaller than bacteria, the res...

FDA Pulls Heartburn Drug Zantac From Market

All versions of the heartburn drug Zantac (ranitidine) have been pulled from the U.S. market due to possible contamination with a probable cancer-causing chemical, the U.S. Food and Drug Administration said Wednesday.

This is the latest step in an ongoing investigation of N-Nitrosodimethylamine (NDMA) in ranitidine medications, the agency noted.

In some ranitidine products, ...

The Most Effective Ways to Kill Coronavirus in Your Home

A number of home cleaning supplies may be effective against the new coronavirus, experts say.

"Not many scientific studies have asked which are the most effective disinfecting agents to use against [the new coronavirus] because it was discovered so recently," said Siobain Duffy, an associate professor of ecology at Rutgers University in New Brunswick, N.J., with expertise in emerging ...

More Evidence Tying Vitamin E Acetate to Vapers' Lung Disease

Researchers have found more evidence from animal studies linking vitamin E acetate in vaping liquids to deadly lung damage in people who use electronic cigarettes.

Vitamin E acetate is sometimes used in vaping liquids with THC, the active ingredient in marijuana.

Since August, there have been more than 2,800 U.S. cases of EVALI (e-cigarette- or vaping-associated lung injury...

Female Firefighters Face Higher Exposure to Carcinogens

Female firefighters are exposed to chemicals that may be linked with breast and other types of cancer, researchers say.

Compared to women working in offices, female firefighters in San Francisco are exposed to higher levels of per- and polyfluoroalkyl substances (PFAS). These chemicals are used in firefighting foam and uniforms, grease- and water-resistant coatings and in fabrics, fur...

Common Plastics Chemicals Linked to Autism Traits in Young Boys

Young boys whose mothers were exposed to chemicals known as phthalates while pregnant may face an increased risk for developing behaviors associated with autism, a new study warns.

Phthalates are chemicals found in many household products, including cosmetics and plastics.

The study didn't identify a heightened risk for autism per se among boys, but rather a "small" increas...

Babies' Exposure to Household Cleaning Products Tied to Later Asthma Risk

A key to your baby's asthma risk may be as close as your laundry room.

Canadian research shows that an infant's exposure to household cleaning products in the first few months of life is tied to heightened odds for asthma by age 3.

Babies may be especially vulnerable because they "typically spend 80% to 90% of their time indoors, and are especially vulnerable to chem...

Some U.S. Workers Are Bringing Toxins Home to Their Kids

People who work with potentially dangerous chemicals or hazardous metals such as lead may unwittingly bring those toxic substances home, a new review says.

In the home, these substances put family members, especially children, at risk of serious illness.

While precautions may be taken in the workplace to protect workers, these take-home exposures may fall into a regulatory bli...

Flame Retardants, Pesticides Remain Threat to U.S. Health: Study

While health problems from childhood exposure to lead and mercury are on the decline, these and other toxic chemicals continue to take a toll, a new study reports.

The progress likely owes to decades of restrictions on use of heavy metals. But researchers from NYU Grossman School of Medicine in New York City said that exposure to other toxic chemicals -- especially flame retardants ...

Sunscreen Chemicals Absorbed Into Body, Study Finds

The chemicals in sunscreens help shield people from the sun's rays, but they are also absorbed into the body at levels that raise some safety questions, a new study confirms.

The study, by the U.S. Food and Drug Administration (FDA), is a follow-up to a 2019 investigation. Both reached the same conclusion: The active ingredients in popular sunscreens can be absorbed into the blood at ...

Banned for Decades, DDT and Dioxins Are Still Harming U.S. Babies

Decades-banned pesticides apparently continue to interfere with fetal growth during U.S. pregnancies, a new study reports.

DDT was banned in 1972 in the United States, but low levels of it and other organic chemical pollutants can still be found in the blood of pregnant American women, researchers reported online Dec. 30 in JAMA Pediatrics.

Women carrying even low levels ...

Insecticides Tied to Heart Disease Deaths

People with high levels of a common insecticide in their system are far more vulnerable to heart disease, a new study suggests.

According to Wei Bao, assistant professor of epidemiology at the University of Iowa College of Public Health, and colleagues, people who have been exposed to pyrethroid insecticides are three times more likely to die from cardiovascular disease than those wit...

Eye Injuries From Household Cleaners Drop, But Kids Remain at Risk

Having little ones visit for the holidays? Be sure to stow household cleaners safely out of their reach.

These products are a major source of reports to U.S. poison control centers, and exposures often involve the eyes. Though overall eye exposures have declined in the United States, the number of cases involving young children remains high.

Between 2000 and 2016, U.S. poiso...

Additives to E-Cigarettes May Be Upping Health Dangers

Natural compounds added to marijuana-derived vaping liquid produce toxic chemicals in the vapor that users inhale, a new lab study reports.

The compounds, known as terpenes, are added into pure THC distillations to dilute the product and provide the vapor with aroma and taste, said senior researcher Robert Strongin, a professor of organic chemistry at Portland State University in Ore...

BPA Levels in Humans Are Underestimated: Study

Levels of the widely used chemical bisphenol A (BPA) in people's bodies are much higher than once thought, according to scientists who say they've created a more accurate way to measure them.

BPA is used in many plastic products, including food and drink containers, and animal studies have shown that it can interfere with hormones. Exposure to BPA in the womb has been linked to growth...

Think Vaping Is Heathier for Your Heart Than Smoking? Think Again

Vaping isn't necessarily better for your heart health than smoking tobacco, a pair of new studies argue.

They report that use of e-cigarettes negatively affects risk factors for heart disease in ways similar to traditional tobacco cigarettes:

  • Levels of bad cholesterol and triglycerides are elevated in people who use e-cigarettes, according to results from the first stud...

Are Disinfectants Putting Nurses at Risk of COPD?

Nurses trying to prevent infection of hospital patients could be putting themselves at risk of developing chronic lung disease, a new study warns.

The cleaners and disinfectants used to sterilize medical equipment and wash hospital surfaces appear to increase nurses' odds of developing chronic obstructive pulmonary disease (COPD), according to findings published online Oct. 18 in J...

Heavy Exposure to Pesticides May Boost Stroke Risk

Working around high levels of pesticides may translate into a high risk for heart trouble later, a new study suggests.

That was the case for a group of Japanese-American men in Hawaii who were followed for more than three decades. Compared to men who had not worked around pesticides, those who had the greatest exposure had a 45% higher risk for heart disease or stroke, researchers...

Flavored E-Cigarettes May Make Asthma Worse

Black licorice, banana pudding and other flavored electronic cigarette liquids may make respiratory diseases like asthma worse, a new international study finds.

Vaping has surged in recent years, especially among young people. An estimated 9% of 18- to 24-year-olds use e-cigarettes in the United States.

The new study comes just after the Trump administration announced ...

Chemicals From Heat-Not-Burn Tobacco Devices Not Harmless: Study

Chemical emissions from heat-not-burn tobacco devices are lower than from conventional cigarettes, but they're still high enough to be cause for concern, researchers report.

The makers of such devices claim that they produce a "clean" vapor that contains fewer irritants and cancer-causing chemicals than a traditional cigarette, and are therefore less dangerous.

"We found th...

Are Hookahs Safer Than Cigarettes? Chemical Study Says No Way

Hookahs may be more dangerous than other types of smoking due to high levels of toxic chemicals, carbon monoxide and ultrafine particles, researchers warn.

Water pipes used to smoke specially made flavored tobacco have become increasingly popular, and 1 in 5 college students in the United States and Europe has tried them.

Researchers at the University of California, Irvine, ...

Clues to Why Epileptic Seizures Can Halt Breathing

Higher levels of the brain chemical serotonin are linked to a lower risk of potentially deadly seizure-related breathing pauses in people with epilepsy, researchers say.

The findings suggest serotonin may help protect people with epilepsy from this threat, according to the authors of the study published in the Sept. 4 online issue of the journal Neurology.

"Serotonin,...

Body's Natural Chemicals May Help Protect 9/11 Responders' Health: Study

Certain chemicals made by the body may have helped prevent lung disease in some first responders who were exposed to toxic dust after the World Trade Center was destroyed on Sept. 11, 2001, researchers say.

The investigators, from New York University School of Medicine, identified 30 metabolites -- chemicals made as the body breaks down fats, proteins and carbohydrates -- associated w...

Diving Deeper Into Sunscreen's Impact on Marine Life

Is the sunscreen you slather on your body marketed as safe for coral reefs? New research suggests those claims may not be entirely true.

Trace metals and other compounds in many sunscreens have unknown effects on marine ecology, say researchers studying Mediterranean waters.

Previous studies have shown that ultraviolet-screening ingredients in sunscreens can harm coral and o...

Plastics Chemicals Meant to Replace BPA May Not Be Any Safer for Kids

Manufacturers have been phasing out the plastics chemical bisphenol A because of evidence it might harm human health. Now a new study raises questions about the chemicals that have replaced it.

Bisphenol A, or BPA, has long been used in plastics. It was once in a wide range of products -- including the lining of food cans, food storage containers, water bottles and even the coating on...

Is Your Mattress Releasing Toxins While You Sleep?

Most people consider their bed a safe haven, but new research suggests your body heat might trigger the release of potentially harmful chemicals from your mattress.

Mattresses are known to release minute amounts of gaseous chemicals called volatile organic compounds (VOCs). These VOCs come mainly from the polyurethane used in the mattress, but also from other chemicals used in flame r...

Household Chemicals Might Be Sparking Rise in Thyroid Disease Among Cats

Could the newer flame retardants now being used in many household products be making cats sick?

A new study says it's possible.

Rates of hyperthyroidism, the most common endocrine-related disease of older cats, have soared since the first case was diagnosed in 1979, researchers report.

Cats with the disease experience weight loss, increased appetite, and increased ...