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.

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.

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)

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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Walking backward could have meaningful benefits for joint health, chronic pain and even brain health, and there’s scientific evidence to back it up.

Multiple studies show that simply changing direction can engage the body in ways traditional exercise can’t. What seems like a novelty might actually be one of the simplest, most accessible ways to move better and hurt less.

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In a study published in the Journal of Orthopaedic Surgery and Research, researchers focused on people with mild to moderate knee osteoarthritis — a condition marked by joint pain, stiffness and limited mobility.

Participants who added backward walking to their routines several times a week for six weeks reported significant improvements in knee function and pain reduction compared to those who stuck with standard forward walking.

Researchers found that walking backward changes how muscles around the knee work. Because the stride is shorter and the landing is softer, it reduces compressive forces on the joints, meaning less wear and tear over time. 

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Another recent study, published in PLOS One, examined how backward walking affects people with chronic lower back pain. After several weeks of incorporating the exercise, participants showed both lower pain levels and better control of their lumbopelvic movement, which is the coordination between the lower back and pelvis that helps stabilize the spine.

Walking backward engages muscles that are often underused. (iStock)

The findings suggest that backward walking uses a wider range of stabilizing muscles than forward walking does. It forces the body to maintain balance and alignment in a different way, waking up muscles that can go underused in our day-to-day routines.

For people struggling with lower back pain, one of the most common musculoskeletal complaints worldwide, it could be a simple intervention that retrains movement patterns and reduces strain on the spine.

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These results are especially striking because the motion itself is low impact. Instead of jumping, twisting or heavy lifting, it’s just retraining the body to move efficiently in reverse.

Walking backward can also aid spatial awareness and coordination. (iStock)

The Cleveland Clinic notes that backward walking isn’t only good for the joints, but also a workout for the mind. Moving in reverse challenges spatial awareness, coordination and concentration. That extra mental effort strengthens the connection between your brain and muscles, helping improve balance and reaction time.

It’s also more physically demanding than it looks. Walking backward burns more calories per minute than walking forward at the same pace, thanks to the increased muscular engagement, according to the Cleveland Clinic. The movement naturally encourages better posture, too, because you have to stay upright and alert to maintain control.

Even small doses can make a difference. Five minutes of backward walking added to a daily routine can provide measurable benefits to strength and balance, particularly in older adults or those recovering from injury.

Experts recommend that those looking to try backward walking should start slowly to avoid risk of injury. (iStock)

Experts recommend starting slowly. Choose a flat, open space like a track, gym floor, or quiet hallway and take short, deliberate steps. Keep your core tight, your shoulders back, and your gaze forward as much as possible. If you’re trying it on a treadmill, begin at a very slow pace and use the rails until you find your footing.

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As your comfort grows, you can alternate short intervals of forward and backward walking. Even a few minutes a day can help your body adapt to the new movement pattern and unlock its benefits.

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It helps protect the knees, strengthen the spine and challenge the brain, all through a motion we’ve spent most of our lives avoiding.

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Sometimes, progress really is about learning to move in reverse.