May 26, 2026

Health News

Top Health News — ScienceDaily Top stories featured on ScienceDaily’s Health & Medicine, Mind & Brain, and Living Well sections.

  • Scientists say they’ve reversed brain aging with a simple nasal spray
    on May 26, 2026 at 1:39 pm

    Researchers at Texas A&M have developed a nasal spray that appears to reverse brain aging by calming inflammation and restoring the brain’s energy systems. After just two doses, memory and cognitive function improved for months, raising hopes for future treatments targeting dementia and brain fog.

  • USC scientists discover a hidden Alzheimer’s trigger and a possible way to shut it down
    on May 26, 2026 at 4:56 am

    USC researchers have identified potential new drug compounds that may reduce the brain inflammation linked to Alzheimer’s disease, especially in people with the high-risk APOE4 gene. The compounds target cPLA2, an enzyme that seems to fuel harmful inflammation while also being important for normal brain activity.

  • Eating more beans and soy could slash high blood pressure risk by nearly 30%
    on May 26, 2026 at 4:09 am

    Eating more beans, lentils, chickpeas, tofu, and other soy foods could be a surprisingly powerful way to fight high blood pressure. A major analysis of studies from around the world found that people with the highest intake of legumes were 16% less likely to develop hypertension, while those eating the most soy foods had a 19% lower risk.

  • Scientists discover why Ozempic and Wegovy weight loss eventually plateaus
    on May 25, 2026 at 1:39 pm

    New NIH research reveals that semaglutide sparks different responses inside appetite-controlling brain cells, offering fresh insight into why GLP-1 weight-loss drugs don’t work the same for everyone. Scientists also found a possible way to extend the drugs’ effects, potentially helping patients push past weight-loss plateaus.

  • Common heart drug taken by millions found useless — and possibly dangerous
    on May 25, 2026 at 12:36 pm

    A massive international study could upend 40 years of heart attack treatment. Researchers found that beta blockers—routinely prescribed after uncomplicated heart attacks—offered no real benefit for patients whose heart function remained normal, despite being given to millions worldwide. Even more surprising, women taking the drugs faced a higher risk of death, repeat heart attack, or hospitalization for heart failure compared to women who didn’t receive them.

  • Scientists discover why some DNA-doubled cells refuse to die
    on May 25, 2026 at 10:03 am

    Scientists have uncovered a surprising twist in how cells behave when division goes wrong. Sometimes a cell successfully copies its DNA but fails to split into two, leaving it with double the genetic material — a mistake linked to aging, cancer, and other major diseases. Researchers discovered that not all of these failures are equal.

  • Beet juice lowers blood pressure in older adults in just 2 weeks
    on May 25, 2026 at 5:01 am

    Drinking nitrate-rich beetroot juice may do more than support heart health — it could actually reshape the bacteria living in the mouth in ways that help lower blood pressure in older adults. In the largest study of its kind, researchers found that older people who drank concentrated beetroot juice twice daily for two weeks experienced noticeable blood pressure reductions, while younger adults did not.

  • Scientists supercharge natural killer cells to fight aggressive cancers
    on May 25, 2026 at 3:03 am

    Scientists at McGill University have found a way to supercharge the immune system’s natural killer (NK) cells, helping them break through the defenses tumors use to stay alive. By temporarily blocking two proteins, researchers turned these cells into far more effective cancer fighters against difficult cancers like leukemia, glioblastoma, kidney cancer, and triple-negative breast cancer.

  • Scientists discover hidden liver switch that cuts harmful cholesterol
    on May 25, 2026 at 2:52 am

    Scientists at UT Southwestern have uncovered a surprising new “master switch” that helps control how much cholesterol the liver sends into the bloodstream. The newly identified protein, HELZ2, works by shutting down the genetic instructions needed to produce apoB — a key building block of the cholesterol-carrying particles linked to clogged arteries and heart disease.

  • Surprising research reveals why you shouldn’t add bananas to your smoothies
    on May 24, 2026 at 12:48 pm

    Researchers found that adding bananas to berry smoothies can dramatically reduce the body’s ability to absorb healthy flavanols. The surprising discovery shows that even simple food combinations can change how much nutrition your body actually gets.