Time was, when someone told you, "Now, you're cooking with gas!" it was meant as a compliment. But research shows that using a gas cooktop or range can introduce dangerous pollutants in your home.

According to the Arizona Public Interest Research Group Education Fund, many retailers fail to adequately inform people of the dangers of cooking with gas, and should warn them at the point of sale. Diane Brown, director of Arizona PIRG, said an open gas flame can release carbon monoxide, nitrogen dioxide, formaldehyde and particulate matter into a home kitchen.

"Running a stove for as little as one hour can lead to concentrations of unsafe pollutants that far exceed health-based standards," she said. "Exposure can contribute to asthma, especially in children."

Arizona PIRG has said it wants retailers to put mandatory product-safety warnings on all natural gas stoves. The group has pointed to data from a 2020 study by medical and environmental groups that found natural gas contributes to climate change as well as air pollution in confined spaces.

Brown said it's important for people to know there are nontoxic alternatives to gas appliances.

"Cooking with electric and induction technology offers a healthier, safer and more energy-efficient choice for consumers," she said. "Electric and induction cooktops are compatible with renewable energy."

Brown said Arizona PIRG is calling on major national retailers to attach warning labels to gas stoves that describe potential health risks and stress that proper ventilation is crucial. They also recommend installing carbon monoxide alarms in homes where gas appliances are in use.

"Consumers deserve to have adequate warning of potential dangers of products," she said, "particularly when it comes to a costly, long-term decision like purchasing a kitchen appliance."

The U.S. Consumer Product Safety Commission has voluntary regulations for gas appliances but does not require mandatory safety warnings.

The cost of heading out of town this Memorial Day weekend will be higher than past years, with higher gas prices and inflation hitting travelers. However, many Montanans still will be getting out of town.

The average price of gas per gallon in Montana is $4.38, slightly below the national average of $4.60 but still a record high for the state.

Aldo Vazquez, spokesperson for AAA Montana, said people want to get away from home this weekend.

"It really isn't impacting their desire to travel much," Vazquez reported. "We are seeing an increase in travel across the board - 39 million people are going to be traveling across the country for the Memorial Day holiday. That's three million more folks than traveled last year."

Although numbers are up from last year, Vazquez noted they are not to the levels from just before the pandemic, and are more in line with 2017 numbers.

Vazquez pointed out there are some ways to save money, such as making sure your tires are fully inflated, and dodging stop-and-go traffic, which burns gas faster.

"If you can avoid those hours between 1 to about 8 p.m. and leave maybe earlier in the morning or later on at night," Vazquez advised. "Not only are you going to save a little bit more on gasoline, but you can also save a lot of that headache and stress about being stuck in traffic and get to your destination smoother."

For people traveling by air, Vazquez suggested passengers arrive at the airport early. He noted staff shortages have led to more flight cancellations than usual, a pattern ongoing since last year.

During the first year of the global pandemic, medical consumers in Colorado received more than one million low-value healthcare services - diagnostic tests, screenings and treatments where the risk of harm outweighs any likely benefit to the patient.

Cari Frank, vice president for communications with the Center for Improving Value in HealthCare - the group behind a new report, said consumers and insurers paid $134 million for these services in 2020.

"Even in spite of COVID, when people weren't accessing health-care services the same way," said Frank, "we still saw high numbers of these low-value care services. And they cost a lot of money, both to the health plans and to the patient, and actually can cause harm to patients."

The most obvious example of low-value care is when providers prescribe opioids for acute back pain without first trying alternative medication - a remedy that comes with significant risk of addiction and even death.

Health providers across the nation, working with medical boards and other professional associations, have created a list and guidelines for low-value services through an initiative called Choosing Wisely.

Frank said getting the word out can help bring down overall health costs. She said many services now considered low-value care were considered best practices at one time.

"A lot of things are just, historically, the way the provider has treated patients," said Frank. "And it takes a while when the guidelines change, for there to be an actual adoption of the guidelines."

The average cost for low-value services is $130 - but some, including peripheral catheters for patients with late-stage kidney disease, cost more than $14,000 per incidence.

Frank noted that every patient is different, and some procedures flagged as low-value may actually be the right course for patients.

"There might be family history, or there might be medical history where they have tried some other alternative," said Frank. "So there still needs to be that kind of communication between the provider and the patient."

The baby-formula shortage is hitting Michigan families hard, especially those who live in rural areas, are low-income or have kids with digestive or other health issues.

Because of supply problems and a massive safety recall by the Michigan Abbott factory in February, the Food and Drug Administration says it is working with manufacturers to increase their output and trying to import more formula.

Data released this week revealed out-of-stock rates jumped to 40% at the end of April. Elyssa Schmier, vice president for government relations with Moms Rising, said she has been dealing with the shortage herself in Michigan.

"Anyone who has a child with medical issues or digestive issues, a lot of them use a particular type of formula that they've found works along with their doctors," said Schmier. "And switching formula is not only incredibly hard, but could be detrimental to their child's health."

She said some moms are driving hours and even crossing state lines to find specialized formula, or buying online for prices far higher than normal. She added that for folks living in rural areas, if their regular store is out of formula, they might not have another nearby option.

Schmier said folks who are struggling to afford formula should reach out to WIC - the Women, Infants and Children special supplemental nutrition program. But she added that the shortage is hitting WIC recipients particularly hard, because they are limited to purchasing certain brands.

"They've been able to get waivers and work in some flexibility for WIC recipients," said Schmier. "But these are people who are low-income. They don't have the ability to stockpile."

Schmier said while it may be tempting to water down formula to conserve it, try to make homemade formula or use cow's milk, it's really important to consult your pediatrician.

"I know from personal experience," said Schmier. "My son didn't switch very easily. He had some digestive issues when we originally switched him. And so your health-care provider can provide you with a lot of good advice of how to slowly do that, how to safely do that."

Moms Rising is circulating a petition calling on President Joe Biden to use the Defense Production Act to get formula on the shelves as soon as possible.