Lifestyle « Weekly Gravy

Parents in the United States may assume baby food is free of impurities, but a recent research review highlights the much different reality: Most foods made for babies and toddlers have some amount of toxic heavy metals. The contaminants include metals, such as lead and arsenic, that can harm brain development, and contribute to learning and behavior problems in children. And they are found in everything from rice cereals to formula to pureed vegetables. It’s an issue that’s been known for decades, yet most parents are probably unaware of it, experts said. “Most people would probably think that, out of all foods, baby food has to be the safest,” said Dr. Sarah Ventre, the lead author on the review and a pediatrician at the University at Buffalo, in New York. But lead, arsenic and other toxic metals exist in the soil and groundwater, finding their way into the food supply, including the products that ultimately end up in baby food. A 2019 study found heavy metals in 95% of baby foods tested. One-quarter contained traces of all four metals researchers assessed: arsenic, cadmium, lead and mercury. That study was commissioned by the nonprofit Healthy Babies Bright Futures (HBBF), and included in the new review. Jane Houlihan, research director at HBBF, agreed that the facts surprise parents, who may assume baby food is tightly regulated. “But… read on > read on >

There’s been plenty of scientific debate about whether vaping is safer than tobacco, and whether it may help some people stop smoking. According to a recent Cochrane Review analysis of 78 studies, electronic cigarettes show more success in helping people quit smoking than traditional nicotine-replacement therapies, such as nicotine patches and gums. “The most important finding from our recent review update is that for the first time there is high certainty evidence that nicotine e-cigarettes are more effective than traditional nicotine-replacement therapies, such as patches, gum or lozenges, in helping people to quit smoking,” said study co-author Ailsa Butler. She is a postdoctoral researcher from the University of Oxford’s Centre for Evidence-Based Medicine, in the United Kingdom. But is vaping better than smoking? Let’s look at how vaping compares to smoking in terms of its safety and effects on your health. How vaping works Vapes, or e-cigarettes, are handheld devices that contain a reservoir for liquid, according to the U.S. National Institutes of Health. This liquid is vaporized upon heating. The heating element is usually powered by a battery. The liquid that goes into the reservoir or “pod” comes in both nicotine and nicotine-free forms. While the liquid may be free of harsh chemicals, it may contain carcinogens or other toxins that can be harmful to your health, according to the National Institute on Drug… read on > read on >

Primary care doctors are no longer just in the physical health business: Americans are increasingly turning to them for mental health care, too, a new study finds. Looking at Americans’ primary care visits between 2006 and 2018, researchers found a 50% increase in the proportion of visits that addressed mental health concerns. That figure rose from just under 11% of visits, to 16% by the end of the study period. The reasons are unclear, experts said, but it’s not just a matter of mental health conditions becoming more common: During the same period, other studies show, the national rate of mental health disorders rose by about 18%. Instead, it seems primary care doctors are shouldering more responsibility for diagnosing and in some cases treating, mental health conditions. “I think this study really underscores the importance of primary care in our country,” said lead researcher Dr. Lisa Rotenstein, medical director of population health at Brigham and Women’s Hospital in Boston. That also means primary care doctors need the resources to make sure patients diagnosed with mental health conditions get the best treatment, she said. The findings — published in the February issue of the journal Health Affairs — are based on an ongoing government survey that collects information on Americans’ office-based medical care. Rotenstein’s team analyzed records from nearly 110,000 primary care visits, representing roughly 3.9… read on > read on >

People who get COVID-19 are at risk for long-term health consequences, but a healthy lifestyle may protect against long COVID, a new study suggests. Women who maintained six healthy habits — a healthy weight, didn’t smoke, exercised regularly, slept and ate well, and drank alcohol in moderation — cut their risk of long COVID by about 50%, compared with women without those healthy habits, researchers found. “If all people adhere to all six healthy lifestyle factors in our cohort, 36% of long COVID could have been avoided,” said lead author Dr. Siwen Wang, a research fellow at the Harvard T.H. Chan School of Public Health. “Also, those with a healthier pre-infection lifestyle had a 30% lower risk of having symptoms that interfere with their daily life,” she added. One possible explanation, Wang said, is that an unhealthy lifestyle increases the odds of chronic inflammation and immune system problems. Both have been tied to an increased risk of long COVID. This study, however, can’t prove that a healthy lifestyle actually lowers the odds of developing long COVID, only that there is an association between the two. “There is also evidence that people with an unhealthy lifestyle sometimes develop autoantibodies and blood clotting issues that have been associated with increased risk of long COVID,” Wang said. “But more studies are definitely needed to understand how a healthy… read on > read on >

Electric cars are still in the minority on America’s roads, yet researchers are already seeing health benefits from reduced tailpipe pollution. In a new California study, neighborhoods with the most all-electric cars — called zero-emission vehicles — saw a decline in asthma-related emergency room visits. Researchers believe this was a result of lower levels of nitrogen dioxide (NO2) in the air. “Results from this study provide some of the first real-world evidence suggesting that switching to zero-emissions vehicles could be a win-win, both reducing emissions of greenhouse gases and potentially improving local air quality and health,” said study co-author Sandrah Eckel, an associate professor of population and public health sciences at the University of Southern California’s Keck School of Medicine in Los Angeles. The adoption of electric cars, however, was seen in areas with higher incomes and educational levels, she said. This might be due to their higher cost and the lack of charging facilities in rental properties. “We are concerned about environmental justice because the communities that stand to benefit the most from reductions in air pollution and asthma ER visits are the communities at risk of being left behind in the transition to electric,” Eckel said. “We need to overcome some of these barriers and make sure that the policies that are made can target the populations that stand to benefit the most… read on > read on >

If you are one of the millions of people distressed by low libido, help may be on the way in the form of a new hormone shot. Two new British studies suggest that injections of the hormone kisspeptin could boost sexual desire in men and women. When folks with low sexual desire received kisspeptin shots, areas of their brains charged with feeling sexual desire lit up on scans when they watched erotic videos. “It’s very nice to see something that works in women and men,” said co-senior study author Dr. Alexander Comninos, a consultant in endocrinology and diabetes and an honorary clinical senior lecturer at Imperial College Healthcare NHS Trust in London. Kisspeptin may stimulate the release of other reproductive hormones, leading to enhanced desire. “Kisspeptin relieves the brake on true sexual arousal,” Comninos said. More studies in larger groups of people are needed to confirm the findings, and kisspeptin is still considered an investigational treatment. “We are in the early stages, but in five to 10 years, we may be able to use kisspeptin to treat distressing low sexual desire in men and women,” Comninos said. However, not everyone with low libido finds it distressing or concerning. In one study of 32 women aged 19 to 48 with low sexual desire, kisspeptin injections boosted brain activity in key brain parts responsible for arousal while… read on > read on >

A new study shows the importance of the messenger when trying to encourage people to get their COVID-19 vaccines. People who know someone who was sickened by the virus or who died from it were twice as likely to get their own vaccinations, researchers report. “This study shows that the messenger matters more than the message: Hearing about the experiences of a trusted person, such as a friend or a family member, can be more effective than vaccine mandates,” said lead author Saurabh Kalra, a doctoral student at the Rutgers School of Public Health in New Brunswick, N.J. “A corollary to this finding is that an influential public figure whom people admire and trust can adversely impact public health if they share misinformation such as the disease is harmless or the vaccines are harmful or unnecessary,” he said in a Rutgers news release. The researchers surveyed just over 1,100 people who were eligible for the vaccine from April 7 to April 12, 2021. They asked whether each person knew family members or friends who had recovered, were still sick or had died from COVID-19. They also asked about COVID vaccination. Certain categories of people were more likely to have received an initial vaccine dose within four months of the emergency use authorization for the Pfizer and Moderna mRNA vaccines. These included essential workers, people with… read on > read on >

Genes may have a strong influence over whether kids develop an eating disorder marked by extremely limited food choices, a new study finds. The study focused on a condition called avoidant restrictive food intake disorder (ARFID). It’s a relatively new diagnosis that describes people who severely limit the types or quantity of food they eat — but not over body image concerns or a quest for thinness. Instead, food is the center of the issue. People with ARFID may have a strong aversion to various tastes, smells or textures, have little appetite, or may fear choking, vomiting or suffering an allergic reaction if they eat an unfamiliar food (often based on a past experience). Studies suggest it affects 1% to 5% of the population. Yet researchers still know little about the causes. The new study suggests genetic vulnerability plays a major role. Looking at data on nearly 17,000 pairs of twins, Swedish researchers found that genes seemed to explain 79% of the risk of having ARFID. “This strongly suggests that genetic studies have huge potential to help us understand the biological pathways underlying ARFID,” said lead researcher Lisa Dinkler of the Karolinska Institute’s Center for Eating Disorders Innovation in Stockholm. An eating disorders specialist not involved in the study agreed. The findings help affirm that there are biological processes underlying ARFID, said Kamryn Eddy, co-director… read on > read on >

People who live near traffic noise, especially when it continues at night, are more likely to develop the repetitive whistling or buzzing sounds in their ears known as tinnitus. Danish researchers found a link between the risk of developing the condition and traffic noise, with a vicious cycle of stress reactions and sleep disturbance as a potential cause. Living near a busy road may increase your stress and affect your sleep, they explained, and those who are sleeping poorly and have higher stress may be at greater risk for tinnitus. For the study, the researchers used data from 3.5 million Danes, finding more than 40,000 cases of tinnitus. For every 10 decibels more noise in people’s homes, the risk of developing tinnitus increased by 6%, said researcher Manuella Lech Cantuaria, an assistant professor at the Mærsk Mc-Kinney-Møller Institute and affiliated with the department of clinical research at the University of Southern Denmark. The need exists for more focus on the importance of traffic noise and human health, said researcher Jesper Hvass Schmidt, an associate professor in the department of clinical research and chief physician at Odense University Hospital. Schmidt thinks there are likely even more unreported cases of tinnitus not referred to a hearing clinic by doctors. Tinnitus is ringing, buzzing, whistling or humming sounds that don’t come from an external source. It can be… read on > read on >

American schoolchildren could be getting school lunches that have less sugar and salt in the future, thanks to new nutrition standards announced by the U.S. Department of Agriculture on Friday. These are the first school lunch program updates since 2012, according to the U.S. Department of Agriculture. What’s different this time is a limit on added sugars, starting in the 2025-2026 school year. Limits would at first target high-sugar foods, including sweetened cereals, yogurts and flavored milks. By fall 2027, added sugars must be less than 10% of total calories a week for school breakfasts and lunches. Sugary grain foods like muffins or doughnuts can’t be served more than twice a week at breakfast. Another example is that an 8-ounce container of chocolate milk must contain no more than 10 grams of sugar under the revised rules. Some popular flavored milks contain twice that amount. “Many children aren’t getting the nutrition they need, and diet-related diseases are on the rise. Research shows school meals are the healthiest meals in a day for most kids, proving that they are an important tool for giving kids access to the nutrition they need for a bright future,” Agriculture Secretary Tom Vilsack said in an agency news release. Vilsack said the agency’s goal is to get school guidelines to align with U.S. dietary guidelines for the nearly 30 million… read on > read on >