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Results for search "Environment".

26 Mar

Are Electric Cars Really Greener?

Or do they also increase carbon emissions by generating power?

Health News Results - 281

Childhood Lead Exposure Tied to Brain Changes in Middle Age

Middle-aged adults who had elevated levels of lead in their blood as children have brain structure changes, new research shows.

For the study, the researchers analyzed childhood lead exposure data on 564 participants in a long-term study of people who were born in the same town in New Zealand in 1972 and 1973.

The participants grew up during the peak era of leaded gasoline (late 1...

Thin Ice: Global Warming May Be Raising Drowning Risks

More children and young adults are drowning in winter lakes because of warming temperatures that create unstable lake ice, a new study finds.

A team of international researchers examined several decades of data, including 4,000 drownings and population information from throughout Canada, 14 U.S. states, Estonia, Germany, Latvia, Finland, Russia, Sweden and regions of Italy and Japan. They...

Global Warming Has Ticks Jumping From Dogs to Humans

Climate change could increase people's risk of getting dangerous diseases from ticks, researchers warn.

The investigators conducted tests with brown dog ticks that carry the bacteria that cause the deadly disease Rocky Mountain spotted fever (RMSF) and found the ticks are much more likely to prefer feeding on the blood of people than dogs when temperatures rise.

Brown dog ticks are ...

Green Spaces Do a Heart Good

More green space can reduce air pollution, improve air quality and maybe lower the risk for heart disease deaths, a new study suggests.

"We found that both increased greenness and increased air quality were associated with fewer deaths from heart disease," said researcher Dr. William Aitken, a cardiology fellow with the University of Miami Miller School of Medicine.

Greenness is a m...

'Green Prescriptions' May Backfire for Some

So-called "green prescriptions" may end up being counterproductive for people with mental health conditions, researchers say.

Spending time in nature is believed to benefit mental health, so some doctors are beginning to "prescribe" outdoor time for their patients.

That led researchers to investigate whether being in nature helps actually does help people with issues such as anxiety...

Global Warming Could Bring Added Risks for Pregnant Women

Global warming could increase rates of serious pregnancy problems, researchers warn.

They analyzed 70 studies from 27 countries that reported associations between high temperatures and preterm birth, birth weight and stillbirths.

"Given increases in the frequency and intensity of heat waves, the number of pregnant women exposed to these conditions worldwide, and the significant...

Most Americans Want to End Seasonal Time Changes: Survey

As most of America prepares for the Nov. 1 return of standard time, 63% want one fixed, year-round time, a new survey finds.

"Evidence of the negative impacts of seasonal time changes continue to accumulate, and there is real momentum behind the push to end seasonal time changes," said Dr. Kannan Ramar, president of the American Academy of Sleep Medicine (AASM), which favors a fi...

Smog Tied to Raised Risk for Parkinson's, Alzheimer's Disease

As the air people breathe gets dirtier, their odds for serious neurological disorders such as Parkinson's disease, Alzheimer's and other dementias rises, new research shows.

The long-term study of more than 63 million older Americans can't prove cause and effect, but does show a strong association between air pollution and brain disorders. The researchers said the link was seen even a...

Bringing the Forest to Kids' Daycare May Boost Young Immune Systems

Want to give your kids an immune system boost? Try letting them play in the dirt more often, a new study suggests.

Researchers in Finland found that when they brought nature into daycare playgrounds -- including forest soil and vegetation -- preschoolers' immune function showed a change for the better. In simple terms, it shifted to a less inflammatory state.

That immune sys...

Normal Conversation Spreads Virus-Laden Droplets Beyond 6 Feet

Ordinary conversation releases airborne droplets that can spread widely through indoor spaces, a finding with big implications for transmission of the new coronavirus, researchers say.

Their experiments showed that everyday talk can expel droplets farther than the typical "social distancing" limit of 6 feet.

"People should recognize that they have an effect around them," sai...

Search and Rescue Dogs Fared Well After Working at 9/11 Sites

Search and rescue dogs used during the 9/11 attacks lived as long as dogs not at the World Trade Center in New York City and the Pentagon, a new study finds.

"I was at Ground Zero and I would hear people make comments like, 'Did you hear that half of the dogs that responded to the bombing in Oklahoma City died of X, Y, or Z?' Or they'd say dogs responding to 9/11 had died," said Dr. ...

Guard Yourself Against the Health Dangers of Wildfire Smoke

As the smoke left by wildfires in California and Oregon continues to linger, people exposed to it need to take steps to protect themselves, an expert says.

In healthy people, wildfire smoke can cause symptoms such as runny nose, burning and watery eyes, sore throat, chest pain and shortness of breath, said Dr. Reza Ronaghi, a pulmonologist at University of California, Los Angeles' Dav...

Wildfire Smoke Poses Special Threat to People With Asthma

People with asthma and other respiratory illnesses need to be aware of the threat that wildfire smoke poses to their breathing and take steps to protect themselves, an allergy expert warns.

Wildfires are raging across western U.S. states, and the smoke is spreading across much of the country.

It's important for everyone -- especially children and people with asthma and other...

How Would Americans' Health Improve If All Cars Were Electric?

America's air would become remarkably cleaner if the country accelerated its transition to electric cars that don't rely on fossil fuels, the American Lung Association said in a new report Tuesday.

A full transition to electric cars by 2040 would also result in fewer deaths, asthma attacks, heart attacks, strokes and other health problems related to air pollution, said William Barrett...

Wildfires Ravage Land, and Lungs, Across the U.S. West

HVAC repairman Brad Sissell shrugged off the acid-yellow air surrounding him and kept working, preparing a gas pipe for a new range going into a Salem, Ore., home.

Less than a half-hour's drive away, nearly 200,000 acres were burning in one of the major Oregon wildfires that has sent a full tenth of the state's population fleeing for shelter.

But it was a workday and so Siss...

Is Rural Appalachia a Hotspot for Alzheimer's?

Alzheimer's disease is more common in rural Appalachian areas of Ohio than in other rural parts of the state, new research shows.

For the study, the investigators analyzed 11 years of Medicare data, ending in 2017, and found that Alzheimer's rates were 2% to 3% higher in rural Appalachian counties than in other rural counties in Ohio.

The study, published online rece...

Study Confirms Restaurants, Bars Are COVID Infection Hotspots

Relaxation of face mask requirements in restaurants, coffee shops and bars could make those venues prime areas for transmission of the new coronavirus, research shows.

The new study compared the behaviors of people diagnosed with COVID-19 and those without such diagnoses. It uncovered one clear difference: Newly ill people without any known contact with a person with COVID-19 were al...

West Coast Wildfires, COVID a Double Whammy to Lung Health

Even as wildfires rage across California, Oregon and Washington, another danger lurks in the eerie orange haze that has enveloped U.S. cities, towns and neighborhoods this week: an increased risk of catching COVID-19.

Wildfire smoke can irritate the lungs and harm the immune system, explained Dr. Cheryl Pirozzi, a pulmonologist at University of Utah Health. The particulate pollution c...

Join the Chorus: Singing Can Be Safe During Pandemic

The coronavirus pandemic silenced choirs around the globe, but researchers in Sweden say it may be safe to sing with others if you take precautions.

"There are many reports about the spreading of COVID-19 in connection with choirs singing. Therefore, different restrictions have been introduced all over the world to make singing safer," said Jakob Löndahl, an associate professor o...

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...

Time Spent in Nature Boosts Kids' Well-Being

Whether camping, hiking or gardening, connecting with nature has many benefits for children's well-being, a new study suggests.

"There is strong evidence that children are happier, healthier, function better, know more about the environment, and are more likely to take action to protect the natural world when they spend time in nature," said researcher Dr. Louise Chawla, professor em...

Flu Virus Can Travel on Dust Particles. Does the Same Hold True for Coronavirus?

New research that shows flu viruses can spread through the air on dust, fibers and other microscopic particles has implications for the spread of the new coronavirus, scientists say.

"It's really shocking to most virologists and epidemiologists that airborne dust, rather than expiratory droplets, can carry influenza virus capable of infecting animals," said lead researcher William Ris...

Air Pollution Tied to Asthma in Young Kids

High levels of air pollution may increase young children's risk of developing asthma and persistent wheezing, researchers warn.

The findings "support emerging evidence that exposure to air pollution might influence the development of asthma," according to a report by Torben Sigsgaard, of Aarhus University in Denmark, and colleagues.

For the new study, the researchers analyze...

Climate Change Could Bring Heat 'Health Crisis' to U.S. Cities

Some of the leading hotspots in the United States are on track to become even more sweltering in the coming decades -- thanks to a combination of greenhouse gas emissions, urban development and population growth.

In a new study, researchers estimate that over the course of this century, the biggest relative increases in extreme heat will hit cities in the Sunbelt -- including Atlanta;...

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...

As Climate Change Intensifies Storms, Seniors' Health Could Suffer: Study

Global warming may ultimately rain on everyone's parade, but new research suggests that major thunderstorms are already wreaking some havoc on the respiratory health of seniors.

That's because atmospheric changes that precede storms increase the risk that older people with asthma or chronic obstructive pulmonary disease (COPD) could develop breathing problems serious enough to send th...

How Streetlights Might Affect Your Colon Cancer Risk

Cities around the world are increasingly turning to streetlights emitting so-called "blue light," and it's also common in smartphones, laptops and tablets. Now, a study hints that excess exposure to blue-spectrum light might raise a person's odds for colon cancer.

As a team of Spanish researchers noted, prior studies have suggested that blue light emitted by most white LEDs (light-emi...

Pandemic Could Complicate Hurricane Season

As Hurricane Isaias moved toward the east coast of Florida on Friday, one expert warns that the coronavirus pandemic could make preparing for an active hurricane season even more challenging.

The average hurricane season has about 12 named storms, but up to 20 storms are being predicted this season, according to Marshall Shepherd, director of the Atmospheric Sciences Program at the Un...

Wildfire Pollution Puts Kidney Patients at Risk

Air pollution caused by forest fires can be deadly for people with kidney failure, a new study suggests.

The tiny particles of air pollutants -- called fine particulate matter -- from wildfires can trigger inflammation in the lungs and further affect the delicate health of people with kidney failure, the researchers said.

Using data from the U.S. Renal Data System (a regis...

Do Bedbugs Dirty the Air Inside Your Home?

Bedbugs do more than infest your sheets and pillows: New research shows they also alter what germs hover in the dust inside your home.

"There is a link between the microbiome of bedbugs and the microbiome of household dust in bedbug-infested homes," said study author Coby Schal, a professor of entomology at North Carolina State University.

"No previous study has reported the...

Many U.S. Homes Too Cramped to Stop COVID-19's Spread

People with COVID-19 are told to keep their distance from family members to protect them from infection. But a new study finds that one-fifth of U.S. homes are too small for that to happen.

Researchers found that more than 20% of households nationwide lacked enough bedrooms and bathrooms to allow a person with COVID-19 to isolate. That covers roughly one-quarter of the population....

Toxic Lead Fallout From Notre Dame Fire May Be Worse Than Thought

A ton of dangerous lead dust may have been deposited around Notre Dame cathedral in Paris when it burned in April 2019 -- far more than had been estimated, a new study suggests.

The cathedral's roof and spire were covered in 460 tons of lead -- a neurotoxic metal that's especially dangerous to children -- and questions have been raised about how much lead was released into nearby neig...

Will COVID Pandemic's Environmental Benefit Last?

It has been the sole silver lining in the coronavirus pandemic -- cleaner air and water on the planet. But will it continue?

A new study says that isn't yet clear.

"The pandemic raises two important questions related to the environment," said study author Christopher Knittel, from the MIT Sloan School of Management in Boston. "First, what is the short-run impact on fossil fu...

Streetlights Could Be Harming Your Teen's Sleep, Mental Health: Study

New research is suggesting links between street lights, neon signs and other forms of nighttime outside lighting and sleeplessness and mood disorders among teens.

The study of more than 10,000 American kids aged 13 to 18 couldn't prove cause and effect. However, it found that teens living in areas with high levels of artificial outdoor light at night went to bed about 29 minutes later...

A Dangerous Antibiotic-Resistant Bacteria May Now Lurk in U.S. Water, Soil

A potentially deadly antibiotic-resistant bacteria could be hiding in the dirt and water of the southernmost U.S. states, warns a new report from the U.S. Centers for Disease Control and Prevention.

The bacterial infection, called melioidosis, caused the lungs of a 63-year-old Texan to shut down in late 2018, forcing doctors to put him on a ventilator to save his life, the researchers...

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...

Wildfire Smoke Causes Rapid Damage to Your Health: Study

Wildfire smoke has an almost immediate harmful effect on the heart and lungs, researchers say.

Using data from wildfire seasons between 2010 and 2015 in British Columbia, Canada, the researchers linked exposure to elevated levels of fine particles in smoke with ambulance dispatches for heart and lung conditions. Dispatches rose within an hour of exposure to wildfire smoke, the investi...

As Pandemic Leads to Clearer Skies, Solar Energy Output Rises

Here's some truly sunny news out of the coronavirus pandemic.

Lower levels of air pollution resulting from people staying at home have enabled more sunlight to reach solar panels and increased their output of clean energy.

For the study, researchers analyzed data from Delhi, India, one of the world's most polluted cities, and published their findings June 19 in the journal ...

'COVID Toe' Lesions Probably Not Caused by COVID-19, Studies Find

Two new studies strongly suggest that the so-called "COVID toe" lesions that have popped up among some Americans during the pandemic may not be caused by infection with the new coronavirus after all.

Despite intensive testing over a wide time period, none of the 51 study patients afflicted with the reddened, tender toes came up positive for SARS-CoV-2, the virus that causes COVID-19....

How the Saharan Dust Plume Could Make Your Allergies Worse

As the giant Saharan dust plume continues its 5,000-mile journey across the Atlantic Ocean, experts warn that people in its path can expect to have flare-ups of allergies and asthma.

The massive dust cloud is expected to hit the U.S. Gulf Coast this week.

"The tiny dust particles contained in the plume will cause eye, nose and throat irritation for anyone who comes in thei...

Coming This Way: Huge Saharan Dust Plume Will Affect Americans' Health

A pandemic, a slew of protests -- and now a huge blanket of Sahara Desert dust will engulf parts of the United States this week.

That's what some weary Americans will have to brace themselves for by Wednesday or Thursday, meteorologists and health experts warn.

The dust plume, drifting from North Africa across the Atlantic to North America, occurs a few times every year, the...

COVID Spreads Quickly in Crowded Homes, Poor Neighborhoods

Poverty and crowded living conditions increase the spread of the coronavirus that causes COVID-19, a new study suggests.

Researchers reached that conclusion after testing nearly 400 women who gave birth at two hospitals in New York City during the peak of the COVID-19 outbreak.

"Our study shows that neighborhood socioeconomic status and household crowding are strongly assoc...

Coronavirus Doesn't Favor Crowded Cities, Study Shows

Densely populated areas of the United States don't have higher rates of COVID-19 infection and death than less-congested areas, according to a new study.

The findings counter the conventional wisdom that the new coronavirus spreads more easily in cities and other densely populated areas.

"The fact that density is unrelated to confirmed virus infection rates and inversely r...

Climate Change, Smog Could Mean More Preemie Babies: Study

Here's more bad news associated with climate change: Pregnant women exposed to air pollution or heat waves face a greater risk of having a preterm or underweight baby, a new research review finds.

The review, of 68 studies from across the United States, found that the large majority arrived at the same conclusion: Babies were at greater risk when their mothers lived in areas with poor...

Disparities in Stroke Care Put Rural Americans at Risk: Study

Stroke patients in rural areas of the United States are less likely to get cutting-edge treatments and more likely to die than those in cities.

That's the takeaway from a new analysis of nationwide data on more than 790,000 adults who were hospitalized with stroke between 2012 and 2017. Most were 64 or older.

Compared to patients in cities, those treated at rural hospitals w...

Doctors' Choice of Anesthesia Could Help Curb Climate Change

Anesthesiologists can help save the planet, a new study suggests.

Increased use of regional anesthesia instead of general anesthesia may help reduce greenhouse gas emissions that contribute to climate change, according to researchers at the Hospital for Special Surgery in New York City.

Unlike general anesthesia, regional anesthesia doesn't use volatile halogenated agents, ...

Experts Warn of 'Sound Cannon' Hearing Loss at Protest Marches

As Americans take to the streets to protest police brutality, they may face ear-blasting "sound cannons" that can harm their hearing.

Sound cannons, or long-range acoustic devices (LRADs), were developed for the military, and now some police departments use them as weapons in crowd control. The sound they emit is greater than that of a jet engine and surpasses the average threshold fo...

Asian Tiger Mosquito Showing Up in Illinois

The Asian tiger mosquito -- which can spread diseases such as chikungunya or dengue fever -- has become more common across Illinois in recent decades, a new study finds.

This species of mosquito originated in the forests of southeast Asia, but arrived in Texas around 1985 and spread to other states.

"The global trade in used tires facilitates the spread of the mosquito," exp...

Coronavirus May Be Seasonal After All

Here's a glimmer of hope about the new coronavirus: New research finds it appears to follow a seasonal pattern that is similar to the flu.

Scientists found that all cities/regions with large COVID-19 outbreaks have similar winter climates, with an average temperature of 41 to 52 degrees Fahrenheit, average humidity levels of 47% to 79%, and are located within a latitude band o...

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...

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