Science
The more women followed this diet, the longer they lived
One of the best diets for health keeps getting better.
A new study that tracked more than 25,000 women for a quarter century found that the more their eating patterns were in sync with the Mediterranean diet, the less likely they were to die during that period. The relationship held up even when researchers accounted for other factors that influence longevity, including age, exercise habits and smoking history.
The findings were published Friday in the journal JAMA Network Open.
The Mediterranean diet is heavy on fruits, vegetables and whole grains. Extra virgin olive oil, which is rich in antioxidants, is the main source of fat. Protein comes from lean sources like beans, legumes and nuts as well as fish, poultry, eggs and low-fat or fat-free dairy. Wine is welcome in low to moderate amounts, while red and processed meats, butter and sweets are eaten sparingly or not at all.
The diet is a longtime favorite of doctors, nutritionists and weight-loss programs. Studies consistently show that it helps people slim down, reduce cholesterol and lower their blood pressure, all of which reduce the risk of cardiovascular disease. It also helps people manage their blood sugar and stave off Type 2 diabetes.
How, exactly, does the Mediterranean diet pull this off? That’s what Shafqat Ahmad, who studies cardiovascular disease development at Sweden’s Uppsala University and Harvard Medical School, and his colleagues wanted to find out.
They turned to the Women’s Health Study, which enrolled tens of thousands of female health professionals who were at least 45 years old. When the women joined the study in the mid-1990s, they answered 131 questions about the foods they ate.
The researchers used those answers to give each woman a score between 0 and 9 that reflected the degree to which they were following the Mediterranean diet. If they were above the median when it came to consumption of vegetables, fruits, nuts, whole grains, legumes or fish, they got one point. Ditto if they were above the median on their ratio of monounsaturated (which are good) to saturated (which are bad) fatty acids.
If the women were below the median for consumption of red and processed meats, they earned another point. And if they consumed between 5 and 15 grams of alcohol per day — the equivalent of a typical glass of wine or a can of beer — they got a point as well.
Those with total scores between 0 and 3 were categorized as having “low” adherence to the Mediterranean diet. A total of 4 or 5 was classified as “intermediate,” and a sum between 6 and 9 was considered “high.”
The Women’s Health Study ended in 2004, but researchers kept checking in with the participants once a year. Ahmad and his colleagues focused on the 25,315 women who had both diet data and a host of biomedical measurements from when they entered the study.
By November 2023, 3,879 of the women had died. But the risk of being among them wasn’t the same for everyone.
Compared to the women in the low adherence group, those in the intermediate group were 16% less likely to die during the study period, while the risk of death for those with the highest fidelity to the Mediterranean diet was 23% lower, according to the study.
When the researchers controlled for smoking behavior, physical activity, alcohol intake and menopausal factors, women in the intermediate group had an 8% lower risk of death, and those in the high group had an 11% lower risk of death.
In addition to a reduced risk of death from any cause, following the Mediterranean diet was associated with a lower risk of dying of cancer or cardiovascular disease, said Dr. Samia Mora, a cardiologist at Brigham and Women’s Hospital in Boston and the study’s senior author.
As for why the Mediterranean diet seemed to protect against premature death, the most influential factor — among the roughly 40 biomarkers the researchers could test — was a group of metabolites that appeared to explain 14.8% of the benefit. Ahmad and his colleagues called particular attention to higher levels of a useful amino acid called alanine as well as lower levels of another amino acid called homocysteine that is elevated in people with heart disease.
Inflammation accounted for 13% of the mortality benefit enjoyed by those with high adherence to the Mediterranean diet. Chronic inflammation is associated with a variety of health problems, including cardiovascular diseases, diabetes and some cancers.
A woman’s body mass index and a measure of how well her body processes triglycerides were each responsible for 10.2% of the reduced risk of death, and insulin resistance accounted for 7.4%.
The study suggests that making even modest improvements in these factors could help people get more longevity out the Mediterranean diet, Ahmad said.
But he and Mora added that there must be other biological mechanisms at work that their study wasn’t able to measure. The gut microbiome may be one of them, they said.
Dr. Frank Hu, a professor of nutrition and epidemiology at the Harvard T.H. Chan School of Public Health, said the study offers “new insights” into why people who embrace the Mediterranean diet tend to live longer.
“It suggests that the health benefits in reducing mortality are explained by its effects on harmful blood metabolites, inflammation, insulin resistance, and body weight rather than by reducing total and LDL cholesterol,” said Hu, who wasn’t involved in the work.
The study comes with several caveats, including the fact that 96% of the participants were white women. That means the results may not generalize to the population at large.
In addition, the women were asked about their eating habits only once, so there’s no way to know whether their diets changed as they got older.
However, Mercedes Sotos Pietro, a nutritional epidemiologist at the Autonomous University of Madrid, said the findings about the reduced risk of death are in line with research she has conducted using data from the Nurses Health Study and the Health Professionals Follow-up Study that assessed diet multiple times.
Sotos Pietro, who didn’t work on the new study, said the Mediterranean diet is “golden” because it includes a variety of tasty foods and doesn’t forbid anything. That makes it easy for people to stick with it for a long time, she said.
Hu added that the diet’s flexibility makes it adaptable to many cuisines.
“As an example, an Asian individual might use tofu as a protein source and replace white rice with brown rice,” he said. “Individuals can incorporate traditional recipes from other cultures and locally available foods while maintaining the MedDiet‘s key principles.”
Science
There were 13 full-service public health clinics in L.A. County. Now there are 6
Because of budget cuts, the Los Angeles County Department of Public Health has ended clinical services at seven of its public health clinic sites.
As of Feb. 27, the county is no longer providing services such as vaccinations, sexually transmitted infection testing and treatment, or tuberculosis diagnosis and specialty TB care at the affected locations, according to county officials and a department fact sheet.
The sites losing clinical services are Antelope Valley in Lancaster; the Center for Community Health (Leavy) in San Pedro, Curtis R. Tucker in Inglewood, Hollywood-Wilshire, Pomona, Dr. Ruth Temple in South Los Angeles, and Torrance. Services will continue to be provided by the six remaining public health clinics, and through nearby community clinics.
The changes are the result of about $50 million in funding losses, according to official county statements.
“That pushed us to make the very difficult decision to end clinical services at seven of our sites,” said Dr. Anish Mahajan, chief deputy director of the L.A. County Department of Public Health.
Mahajan said the department selected clinics with relatively lower patient volumes. Over the last month, he said, the department has sent letters to patients about the changes, and referred them to unaffected county clinics, nearby federally qualified health centers or other community providers. According to Mahajan, for tuberculosis patients, particularly those requiring directly observed therapy, public health nurses will continue visiting patients.
Public health clinics form part of the county’s healthcare safety net, serving low-income residents and those with limited access to care. Officials said that about half of the patients the county currently sees across its clinics are uninsured.
Mahajan noted that the clinics were established decades ago, before the Affordable Care Act expanded Medi-Cal coverage and increased the number of federally qualified health centers. He said that as more residents gained access to primary care, utilization at some county-run clinics declined.
“Now that we have a more sophisticated safety net, people often have another place to go for their full range of care,” he said.
Still, the closures have unsettled providers who work closely with local vulnerable populations.
“I hate to see any services that serve our at-risk and homeless community shut down,” said Mark Hood, chief executive of Union Rescue Mission in downtown Los Angeles. “There’s so much need out there, so it always is going to create hardship for the people that actually need the help the most.”
Union Rescue Mission does not receive government funding for its healthcare services, Hood said. The mission’s clinics are open not only to shelter guests, up to 1,000 people nightly, but also to people living on the streets who walk in seeking care.
Its dental clinic alone sees nearly 9,000 patients a year, Hood said.
“We haven’t seen it yet, but I expect in the coming days and weeks we’ll see more people coming through our doors looking for help,” he said. “They’re going to have to find help somewhere.” Hood said women experiencing homelessness are especially vulnerable when preventive care, including sexual and reproductive health services, becomes harder to access.
County officials said staffing impacts so far have been managed through reassignment rather than layoffs. Roughly 200 to 300 positions across the department have been eliminated amid funding cuts, officials said, though many were vacant. About 120 employees whose positions were affected have been reassigned; according to Mahajan, no one has been laid off.
The clinic closures come amid broader fiscal uncertainty. Mahajan said that due to the Trump administration’s “Big Beautiful Bill,” Los Angeles County could lose $2.4 billion over the next several years. That funding, he said, supports clinics, hospitals and community clinic partners now absorbing patients who previously went to the clinics that closed on Feb. 27.
In response, the L.A. County Board of Supervisors has backed a proposed half-cent sales tax measure that would generate hundreds of millions of dollars annually for healthcare and public health services. Voters are expected to consider the measure in June.
Science
Mobile clinic brings mammograms to women on Skid Row
Sharon Horton stepped through the door of a sky-blue mobile clinic and onto a Skid Row sidewalk. She wore a yellow knit beanie, gold hoop earrings and the relieved grin of a woman who has finally checked a mammogram off her to-do list.
It had been years since her last breast cancer screening procedure. This one, which took place in City of Hope’s Cancer Prevention and Screening mobile clinic, was faster and easier. The staff was kind. The machine that X-rayed her breast was more comfortable than the cold hard contraption she remembered.
Relatively speaking, of course — it was still a mammogram.
“It’s like, OK, let me go already!” Horton, 68, said with a laugh.
The clinic was parked on South San Pedro Street in front of Union Rescue Mission, the nonprofit shelter where Horton resides. Within a week, City of Hope, a cancer research hospital, would share the results with Horton and Dr. Mary Marfisee, the mission’s family medical services director. If the mammogram detected anything of concern, they’d map out a treatment plan from there.
Naureen Sayani, 47, a resident of Union Rescue Mission, left, discusses her medical history with Adriana Galindo, a medical assistant, before getting a mammogram on last week.
(Kayla Bartkowski / Los Angeles Times)
“It’s very important to take care of your health, and you need to get involved in everything that you can to make your life a better life,” said Horton, who is looking forward to a forthcoming move into Section 8 housing.
Horton was one of the first patients of a new women’s health initiative from UCLA’s Homeless Healthcare Collaborative at Union Rescue Mission. Staffed by third-year UCLA Medical School students and led by Marfisee, a UCLA assistant clinical professor of family medicine, the clinic treats mission residents as well as unhoused people living in the surrounding neighborhood.
The new cancer screening project arrives at a time of dire financial pressures on county public health services.
Citing rising costs and a $50-million reduction in federal, state and local grant and contract income, the Los Angeles County Department of Public Health on Feb. 27 ended services at seven of 13 public clinics that provide vaccines, tests and treatment for sexually transmitted diseases and other services to housed and unhoused county residents.
Although Union Rescue Mission’s own funding comes mainly from private sources and is less imperiled by public cuts, the 135-year-old shelter expects the need for its services to rise, Chief Executive Mark Hood said.
Even as unsheltered homelessness declined for the last two years across Los Angeles County, the unsheltered population on Skid Row — long seen as the epicenter of the region’s homelessness crisis — grew 9% in 2024, the most recent year for which census data are available.
For many local women navigating daily concerns over housing, food and personal safety, “their own health is not a priority,” Marfisee said.
Those whose problems have become too serious to ignore face daunting obstacles to care. Marfisee recalled one patient who came to her with a lump in her breast and no identification.
In order to get a mammogram, Marfisee explained, the woman first needed to obtain a birth certificate, and then a state-issued identification card. Then she needed to enroll in Medi-Cal. After that, clinic staff helped her find a primary care physician who could order the imaging test.
Given the barriers to preventative care, homeless women die from breast cancer at nearly twice the rate of securely housed women, a 2019 study found. Marfisee’s own survey of the mission’s female residents found that nearly 90% were not up to date on recommended cancer screenings like mammograms and pap smears, which detect early cervical cancer.
To address this gap, Marfisee — a dogged patient advocate — reached out to City of Hope. The Duarte-based research and treatment center unveiled in March 2024 its first mobile cancer screening clinic, a moving van-sized clinic on wheels that it deploys to food banks and health centers, as well as to companies offering free mammograms as an employee benefit.
“In true Dr. Mary fashion, she saw the vision,” said Jessica Thies, the mobile screening program’s regional nursing director. After working through some logistical hurdles, the mission and City of Hope secured a date for the van’s first visit.
The next challenge was getting the word out to patients. Marfisee and her students walked through the surrounding neighborhood, went cot to cot in the women’s dorm and held two informational sessions in December and January to answer patients’ questions.
At the sessions, the team walked through the basics of who should get a mammogram (women age 40 or older, those with a family history of breast cancer) and the procedure itself. (“Like a tortilla maker?” one woman asked skeptically after hearing a description of the mammography unit.)
The medical students were able to dispel rumors some women had heard: The test doesn’t damage breast tissue, nor do the X-rays increase cancer risk. Others questioned a mammogram’s value: What good was it knowing they had cancer if they couldn’t get follow-up care?
On this latter point, Marfisee is determined not to let patients fall through the cracks.
Thirteen patients received mammograms at the van’s first visit on Wednesday. Within a week, City of Hope will contact patients with their results and send them to Marfisee and her team. She is already mentally mapping the next steps should any patient have a situation that requires a biopsy or further imaging: working with their case manager at the mission, calling in favors, wrangling with any insurance the patient might have.
“It’ll be a good fight,” Marfisee said, as residents in the adjacent cafeteria carried trays of sloppy joes and burgers to their lunch tables. “But we’ll just keep asking for help and get it done.”
Science
Can fire-resistant homes be sexy? ‘You be the judge,’ says this Palisades architect
At first glance, it looks like nothing more than a charming Spanish-revival, quintessentially Californian home — but this Pacific Palisades rebuild is constructed like a tank.
Every exterior wall of the steel-framed home is a foot-thick, fire-resistant barricade. The home is connected to a satellite fire monitoring service. Should a fire start in town, sturdy metal shutters descend to cover every window. An exterior sprinkler system can pump 40,000 gallons of water from giant tanks hidden behind the shrubs in the property’s yard. If the cameras and heat sensors around the house detect danger, the system can envelop the home in over 1,000 gallons of fire retardant and hundreds of gallons of fire-suppressing foam.
Palisades resident and architect Ardie Tavangarian is so confident in his design that he even asked the fire department if they could start a controlled fire on the property to test it all out. (They said no.)
Tavangarian built a career designing multimillion-dollar luxury homes in Los Angeles, but after the Palisades fire destroyed 13 of his works — including his family’s home — he found another calling: how to design a house that can handle what the Santa Monica Mountains throw at it. And how to do it quickly and affordably.
Water tanks form part of a backup water supply in a newly built fire-resistant home in Pacific Palisades.
“Nature is so powerful,” he said, sitting on a couch in the new house, which he built for his adult twin daughters. “We are guests living in that environment and expecting, ‘Oh, nature is going to be really kind to me.’ No, it’s not. It does what it’s supposed to do.”
Tavangarian watched the Jan. 1 Lachman fire from his property not far from here; a week later that fire rekindled, grew into the Palisades fire, and burned through his house. But the painful details of the fire — the missteps of the fire department, the empty reservoir — didn’t matter when it came to deciding how to rebuild, he said. The reality is, many fires have burned in these mountains. Many more will.
A sprinkler on the roof is part of a house-wide sprinkler system.
For the architect, who has spent much of his 45-year career designing for luxury, hardening a home against wildfire has brought a new kind of luxury to his homes: peace of mind.
It’s a sentiment that resonates with fire survivors: Tavangarian says he’s received considerable interest from other property owners in the Palisades looking to rebuild their houses.
The metal shutters and advanced outdoor sprinkler system are the flashiest parts of Tavangarian’s home hardening project, and the efficacy of these adaptations is still up for debate. Because the measures have not yet been widely adopted, there are few studies exploring how much or little they protect homes in real-world fires.
Architect Ardie Tavangarian inside the house he designed.
Anecdotal evidence has indicated the effectiveness of sprinklers can vary significantly based on the setup and the conditions during the fire. Extreme wind, for example, can make them less effective. Lab studies have generally found shutters can reduce the risk of windows shattering.
These measures aren’t cheap, either. Sprinkler systems can cost north of $100,000, for example. However, Tavangarian said when all was said and done, the home he built for his daughters cost around $700 per square foot — less than what Palisades residents said they expected to pay, but more than what Altadena residents expected for their rebuilds.
Tavangarian also hopes to see insurers increasingly consider the home-hardening measures property owners take when writing policies, which he said could potentially offset the extra cost in a decade or less. As he explored getting insurance for the new home, one insurer quoted him $80,000 a year. After he convinced the company to visit the property, it lowered the quote to just $13,000, he said.
The house includes metal heat shields that can drop down if a fire approaches.
The home also has essentially all of the other less flashy — but much cheaper and well-proven — home hardening measures recommended by fire professionals: The underside of the roof’s overhang is closed off — a common place embers enter a home. The roof, where burning embers can accumulate, is made of fire-resistant material. The windows, vulnerable to shattering in extreme heat, are made of a toughened glass. There is virtually no vegetation within the first five feet of the home.
When asked if he felt he had compromised on design, comfort or aesthetics for the extra protection — one of the many concerns Californians have with the state’s draft “Zone Zero” requirements that may significantly limit vegetation within five feet of a home — Tavangarian simply said, “You be the judge.”
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