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Shingles vaccine connected to ‘exciting’ health benefits in large study

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Shingles vaccine connected to ‘exciting’ health benefits in large study

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The shingles vaccine is intended to prevent shingles, a painful rash caused by the reactivation of the varicella-zoster virus, also known as herpes zoster — but a new study suggests that it could have major secondary benefits.

Researchers at Case Western Reserve University have identified a potential link between the shingles vaccine and a reduced risk of developing vascular dementia.

The vaccine has also been associated with a significant decreased risk of cardiovascular events and death in people 50 and older.

Researchers have identified a potential link between the shingles vaccine and a reduced risk of developing vascular dementia. (iStock)

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Experts presented the findings last week at the Georgia World Congress Center in Atlanta, the site of IDWEEK 2025, a joint annual meeting of the leading infectious disease professional societies in the U.S.

The study authors examined health records from 174,000 adults in the U.S. They followed participants who received the vaccination over a span of three months up to seven years.

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Participants who received the shingles vaccine had about half the risk of developing vascular dementia.

They also had a 25% lower risk of heart attack or stroke, a 27% lower risk of blood clots and a 21% lower risk of death, according to a news release from the Infectious Diseases Society of America.

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Shingles is a red, blistery, painful rash caused by the reactivation of the virus that causes chicken pox.  (iStock)

“Our study findings show that the shingles vaccine may help lower those risks, especially in people already at higher risk for heart attack or stroke,” presenting author Ali Dehghani, a doctor of internal medicine at Case Western Reserve University’s School of Medicine in Cleveland, Ohio, said in the IDSA report.

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Shingles is a red, blistery, painful rash caused by the reactivation of the virus that causes chicken pox. The latent varicella zoster virus lies dormant in the body after a person has chicken pox. It can become activated in later years, causing shingles, health experts told Fox News Digital.

Participants who received the shingles vaccine had about half the risk of developing vascular dementia. (iStock)

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The condition can lead to cardiovascular and neurologic complications, previous studies have shown.

Shingles affects one out of three Americans, and more than 99% of those born before 1980 have had chicken pox, according to the Centers for Disease Control and Prevention.

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“Shingles is more than just a rash — it can raise the risk of serious problems for the heart and brain,” Dehghani said in the news release.

These latest findings build on past studies that indicate the vaccine may help protect individuals against shingles and related complications, according to infectious disease experts.

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“This very interesting study … supported prior evidence that the shingles vaccine may offer several benefits for general health, including against the development of dementia, in addition to preventing the very painful and common illness know as shingles,” Dr. Aaron Glatt, a spokesperson for the ISDA and a board-certified infectious disease physician at Mount Sinai South Nassau in Oceanside, New York, told Fox News Digital.

While more studies are needed, a doctor said, “It is very comforting to know that the shingles vaccine is certainly associated with overall significant health benefits beyond its intended purpose.” (iStock)

Although these findings are “very exciting and potentially clinically important,” Glatt — who was not involved in the study — noted that it’s not yet proven that these benefits are due to the shingles vaccine.

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There are a number of possible mechanisms that could contribute to this association, including decreased inflammation, the doctor pointed out.

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While more studies are needed, Glatt said, “It is very comforting to know that the shingles vaccine is certainly associated with overall significant health benefits beyond its intended purpose.”

The CDC recommends two doses of recombinant zoster vaccine (RZV) to prevent shingles and related complications in adults aged 50 years and older, as well as for adults aged 19 and older who are or will be immunodeficient or immunosuppressed.

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Heart disease threat projected to climb sharply for key demographic

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Heart disease threat projected to climb sharply for key demographic

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A new report by the American Heart Association (AHA) included some troubling predictions for the future of women’s health.

The forecast, published in the journal Circulation on Wednesday, projected increases in various comorbidities in American females by 2050.

More than 59% of women were predicted to have high blood pressure, up from less than 49% currently.

The review also projected that more than 25% of women will have diabetes, compared to about 15% today, and more than 61% will have obesity, compared to 44% currently.

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As a result of these risk factors, the prevalence of cardiovascular disease and stroke is expected to rise to 14.4% from 10.7%.

The prevalence of cardiovascular disease and stroke in women is expected to rise to 14.4% from 10.7% by 2050. (iStock)

Not all trends were negative, as unhealthy cholesterol prevalence is expected to drop to about 22% from more than 42% today, the report stated.

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Dr. Elizabeth Klodas, a cardiologist and founder of Step One Foods in Minnesota, commented on these “jarring findings.”

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“The fact that on our current trajectory, cardiometabolic disease is projected to explode in women within one generation should be a huge wake-up call,” she told Fox News Digital.

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“Hypertension, diabetes, obesity — these are all major risk factors for heart disease, and we are already seeing what those risks are driving. Heart disease is the No. 1 killer of women, eclipsing all other causes of death, including breast cancer.”

Cardiovascular disease is the leading cause of death for women in the U.S. and around the world. (iStock)

Klodas warned that heart disease starts early, progresses “stealthily,” and can present “out of the blue in devastating ways.”

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The AHA published another study on Thursday revealing one million hospitalizations, showing that heart attack deaths are climbing among adults below the age of 55.

The more alarming finding, according to Klodas, is that young women were found more likely to die after their first heart attack than men of the same age.

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“This is all especially tragic since heart disease is almost entirely preventable,” she said. “The earlier you start, the better.”

Children can show early evidence of plaque deposition in their arteries, which can be reversed through lifestyle changes if “undertaken early enough and aggressively enough,” according to the expert.

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Moving more is one part of protecting a healthy heart, according to experts. (iStock)

Klodas suggested that rising heart conditions are associated with traditional risk factors, like smoking, high blood pressure, high cholesterol, diabetes, obesity and a sedentary lifestyle.

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Doctors are also seeing higher rates of preeclampsia, or high blood pressure during pregnancy, as well as gestational diabetes. Klodas noted that these are sex-specific risk factors that don’t typically contribute to complications until after menopause.

The best way to protect a healthy heart is to “do the basics,” Klodas recommended, including the following lifestyle habits.

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Klodas especially emphasized making improvements to diet, as the food people eat affects “every single risk factor that the AHA’s report highlights.”

“High blood pressure, high blood sugar, high cholesterol, excess weight – these are all conditions that are driven in part or in whole by food,” she said. “We eat multiple times every single day, which means what we eat has profound cumulative effects over time.”

“Even a small improvement in dietary intake, when maintained, can have a massive positive impact on health,” a doctor said. (iStock)

“Even a small improvement in dietary intake, when maintained, can have a massive positive impact on health.”

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The doctor also recommends changing out a few snacks per day for healthier choices, which has been proven to “yield medication-level cholesterol reductions” in a month.

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“Keep up that small change and, over the course of a year, you could also lose 20 pounds and reduce your sodium intake enough to avoid blood pressure-lowering medications,” Klodas added.

“Women should not view the AHA report as inevitable. We have power over our health destinies. We just need to use it.”

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Vanessa Williams, 62, Opens up About Weight Loss and HRT After Menopause

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Vanessa Williams, 62, Opens up About Weight Loss and HRT After Menopause


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Common vision issue linked to type of lighting used in Americans’ homes

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Common vision issue linked to type of lighting used in Americans’ homes

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Nearsightedness (myopia) is skyrocketing globally, with nearly half of the world’s population expected to be myopic by 2050, according to the World Health Organization.

Heavy use of smartphones and other devices is associated with an 80% higher risk of myopia when combined with excessive computer use, but a new study suggests that dim indoor lighting could also be a factor.

For years, scientists have been puzzled by the different ways myopia is triggered. In lab settings, it can be induced by blurring vision or using different lenses. Conversely, it can be slowed by something as simple as spending time outdoors, research suggests.

Nearsightedness occurs when the eyeball grows too long from front to back, according to the American Optometric Association (AOA). This physical elongation causes light to focus in front of the retina rather than directly on it, making distant objects appear blurry.

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The study suggests that myopia isn’t caused by the digital devices themselves, but by the low-light environments where they are typically used. (iStock)

Researchers at the State University of New York (SUNY) College of Optometry identified a potential specific trigger for this growth. When someone looks at a phone or a book up close, the pupil naturally constricts.

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“In bright outdoor light, the pupil constricts to protect the eye while still allowing ample light to reach the retina,” Urusha Maharjan, a SUNY Optometry doctoral student who conducted the study, said in a press release.

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“When people focus on close objects indoors, such as phones, tablets or books, the pupil can also constrict — not because of brightness, but to sharpen the image,” she went on. “In dim lighting, this combination may significantly reduce retinal illumination.”

High-intensity natural light prevents myopia because it provides enough retinal stimulation to override the “stop growing” signal, even when pupils are constricted. (iStock)

The hypothesis suggests that when the retina is deprived of light during extended close-up work, it sends a signal for the eye to grow.

In a dim environment, the narrowed pupil allows so little light through that the retinal activity isn’t strong enough to signal the eye to stop growing, the researchers found.

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In contrast, being outdoors provides light levels much brighter than indoors. This ensures that even when the pupil narrows to focus on a nearby object, the retina still receives a strong signal, maintaining healthy eye development.

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The team noted some limitations of the study, including the small subject group and the inability to directly measure internal lens changes, as the bright backgrounds used to mimic the outdoors made pupils too small for standard equipment.

Researchers believe that increasing indoor brightness during close-up work could be a simple, testable way to slow the global nearsightedness epidemic. (iStock)

“This is not a final answer,” Jose-Manuel Alonso, MD, PhD, SUNY distinguished professor and senior author of the study, said in the release.

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“But the study offers a testable hypothesis that reframes how visual habits, lighting and eye focusing interact.”

The study was published in the journal Cell Reports.

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