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Researchers say distance from fuel pumps could play a bigger role in health than previously thought

• A new Canadian study found higher rates of childhood leukemia among children living close to gas stations.

• Researchers focused on exposure to benzene, a known carcinogen found in gasoline fumes.

• The study suggests vapor-control systems and buffer zones could help reduce potential risks.

A new study is raising fresh questions about how living near gas stations may affect childrens health.

Researchers from Canada found that children born close to gas stations appeared to face a higher risk of developing leukemia, with the risk increasing the closer they lived to fuel pumps. The findings add to growing concerns about long-term exposure to air pollutants tied to gasoline and vehicle emissions.

Research suggests that only 5 to 10% of childhood cancers are attributable solely to genetics, while the rest are due to other factors, particularly environmental ones, researcher Stphane Buteau said in a news release.

The study

The study, published in the journal Environmental Pollution, followed more than 824,000 children born in Quebec, Canada.

Researchers looked at where children lived at birth and compared that information with later childhood cancer diagnoses. They specifically examined whether there were gas stations within 250 meters about 820 feet of a childs home.

The researchers focused on gas stations because gasoline releases benzene, a chemical already linked to leukemia and other health concerns in adults. Benzene can enter the air during fuel storage, refueling, and fuel deliveries by tanker trucks.

In the absence of residential history, postal codes at birth were used to estimate exposure during the prenatal and early-life periodstimes of heightened susceptibility to environmental hazards, said Buteau,.

What the study found

According to the study, children living within 250 meters of a gas station had a higher risk of childhood leukemia, and the risk appeared highest for those living within 100 meters, or roughly 328 feet.

The study also found an interesting difference in Montreal, where local rules require vapor recovery systems at gas stations to reduce emissions during fueling. In that city, the connection between nearby gas stations and cancer risk appeared weaker, suggesting pollution-control measures may help lower exposure levels.

Researchers cautioned that the study does have limitations. For example, they used postal codes at birth rather than tracking where families lived over time. The findings also do not prove that gas stations directly cause cancer. Instead, the study identifies an association that researchers say deserves further investigation.

What these findings mean for consumers

For consumers, the study highlights how environmental factors may play a role in health risks, particularly for children.

Researchers suggested that cities could consider creating buffer zones between gas stations and places where children spend time, such as homes, schools, and daycares. They also pointed to vapor recovery systems as a relatively simple way to reduce emissions.

Such measures are simple and not costly to implement, and they would deliver major health benefits and help reduce inequalities in exposure levels, Buteau said.

The change comes as shoppers increasingly expect faster, cheaper shipping

• Target is expanding next-day delivery service to more areas across the U.S., covering millions of additional shoppers.

• The retailer says most items sold in stores are now eligible for next-day shipping, including groceries, household basics, and electronics.

• Consumers may be able to get free next-day delivery depending on order size, memberships, or payment methods.

Target is making a bigger push into fast shipping, expanding its next-day delivery service across the United States as retailers race to meet growing consumer demand for convenience.

The company says the move will allow more shoppers to receive orders the very next day on hundreds of thousands of eligible items, from pantry staples to clothing and home goods.

The expansion comes as major retailers continue competing with services like Amazon Prime and Walmart delivery, where speed has become one of the biggest selling points for online shopping.

This spring, 60% of the U.S. population will have access to quicker, easier shopping as Target expands next-day delivery of online orders to more markets, the company said in a statement. Guests in more than 50 top U.S. metro areas will be able to get their purchases delivered next day in many cases for free.

Whats changing?

According to Target, most items available for shipping now qualify for next-day delivery, representing roughly 85% of products sold in Target stores. Customers can check whether an item is eligible directly on the product page or during checkout.

The company says next-day delivery is free on orders over $35, and Target Circle 360 members or shoppers using a Target Circle Card can qualify for no-minimum delivery perks.

The expansion is tied to Targets larger investment in supply chain and fulfillment operations. Over the last few years, the retailer has added sortation centers, expanded last-mile delivery networks, and turned many stores into mini fulfillment hubs to move online orders faster.

Company executives have said these efforts are designed to help Target compete more aggressively in the growing delivery market while also improving efficiency behind the scenes.

What this means for consumers

For consumers, the changes could make online shopping feel much more like an on-demand service. Faster shipping can be especially useful for last-minute needs like household essentials, birthday gifts, school supplies, or forgotten groceries. But shoppers may still want to pay attention to delivery minimums, membership fees, and item eligibility before assuming every purchase qualifies for free next-day arrival.

Consumers should also remember that next day can depend on order timing and inventory availability in their region. Retailers often require purchases to be placed before a certain cutoff time, and some products may ship separately. Comparing membership perks between retailers could also help shoppers decide which service offers the best value based on how often they order online.

New research suggests long-term weight management may slow cognitive decline in older adults

• A new University of Georgia study found that higher BMI over time was linked to faster cognitive decline in adults over 50.

• Researchers tracked more than 8,200 people for 24 years and found the strongest effects in adults over 65.

• The study suggests that managing weight may help slow declines in memory, focus, and problem-solving skills.

As people get older, some degree of memory loss and slower thinking is considered a normal part of aging. But new research from the University of Georgia suggests that long-term weight gain could speed up that process more than previously thought.

According to the study, adults with higher body mass index (BMI) over time experienced faster declines in memory, executive functioning, and overall cognitive health compared to people with lower BMI levels.

Researchers say the findings highlight an important connection between physical and brain health, especially as the population ages. The study was published in the Journal of Neurology and focused on adults over the age of 50.

We found that if people managed their weight, they could significantly lower their rate of cognitive decline in just two years, researcher Suhang Song said in a news release. That makes BMI one of the most easily modifiable risk factors when it comes to aging well.

The study

The research team analyzed data from more than 8,200 participants who were followed for 24 years as part of a large national health study, the Health and Retirement Study (1996-2020).

Rather than looking at weight at a single moment in time, researchers tracked BMI trends over many years to better understand long-term effects on the brain.

Additionally, the researchers measured cognition using a standardized composite score of memory and executive function.

The findings

They found that every increase in BMI was associated with faster declines in areas tied to memory, concentration, planning, emotional regulation, and decision-making.

The link between weight and cognitive decline appeared strongest around year eight of the study, and the impact was most noticeable among adults older than 65. Researchers noted that obesity may affect the brain through several possible pathways, including inflammation, insulin resistance, and reduced blood flow. These changes may contribute to conditions like cognitive impairment and dementia over time.

Still, the researchers emphasized that the findings are not meant to be discouraging. In fact, they noted that weight management may be one of the more changeable risk factors tied to brain aging.

For consumers, the takeaway is less about chasing a perfect number on the scale and more about understanding how overall health habits may influence brain health later in life.

The study does not prove that weight directly causes dementia, but it does suggest that maintaining a stable, healthy weight over time could play a role in supporting cognitive function as people age. Researchers also pointed out that dementia rates are expected to rise sharply in the coming decades, making preventive lifestyle factors increasingly important.

There are no cures for dementia, Song said, which is why it is critical to identify and address any modifiable risk factors we can find to prevent it.