June 21, 2026

Health News

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

  • Yale study finds nearly half of older adults improved with age
    on June 21, 2026 at 10:02 am

    A long-term Yale study is challenging one of the biggest myths about aging. Nearly half of adults over 65 improved physically, mentally, or both over time, despite the common belief that aging means constant decline. Researchers found that people with more positive attitudes about getting older were significantly more likely to show these gains.

  • Scientists discover neurons must break their DNA to build the brain
    on June 21, 2026 at 6:30 am

    As newborn neurons make their way through the developing brain, they must squeeze through incredibly tight spaces to reach their final destinations. Researchers discovered that this physical journey routinely causes some of the most severe forms of DNA damage—double-strand breaks—yet the young brain has evolved an impressive ability to repair the damage almost immediately.

  • Major review finds vaping likely causes lung and oral cancer
    on June 21, 2026 at 5:26 am

    Researchers have concluded that nicotine vapes are likely to cause lung and oral cancers, based on evidence ranging from human biomarkers to animal and laboratory studies. The findings challenge the idea that vaping is a harmless alternative to smoking and suggest health risks may be emerging much sooner than many expected.

  • Scientists found a cannabis compound that relieves pain without the high
    on June 20, 2026 at 3:33 pm

    Compounds responsible for the aroma of cannabis and many other plants may offer a surprising new way to relieve chronic pain. Researchers found that several cannabis-derived terpenes significantly reduced pain in mouse models of fibromyalgia and post-surgical pain, with one terpene, geraniol, showing especially strong effects. Unlike THC, these compounds are not associated with psychoactive effects, making them a potentially attractive alternative for pain treatment.

  • This DNA repair gene went rogue and exposed a cancer weakness
    on June 20, 2026 at 12:27 pm

    Scientists have discovered that a gene normally considered a DNA-protecting “good guy” can become dangerous when cells make too much of it. The gene, EXO1, acts like molecular scissors that help repair DNA, but when overproduced it starts cutting DNA it shouldn’t, creating damage linked to cancer.

  • Ozempic changed obesity treatment, but experts say the real revolution is next
    on June 20, 2026 at 11:28 am

    The obesity treatment landscape is changing fast, with GLP-1 drugs opening the door to more effective care than ever before. Experts now envision a future where medications, minimally invasive procedures, surgery, and precision medicine work together to deliver better long-term results.

  • Think you’re eating healthy? You may be missing this heart-protecting nutrient
    on June 19, 2026 at 1:56 pm

    Eating five servings of fruits and vegetables may not be enough if you’re missing foods rich in flavanols, a group of compounds linked to better heart health. Researchers found that choices like blackberries, plums, apples, broad beans, cherries, and green tea can dramatically increase flavanol intake.

  • Scientists reprogram brain immune cells to fight Alzheimer’s
    on June 19, 2026 at 11:47 am

    A newly identified molecule called OLE helped restore the brain’s immune cells to a more protective state in Alzheimer’s models. The treatment reduced toxic plaque buildup and improved memory, raising hopes for a new therapeutic approach.

  • This giant tropical fruit could help reverse gum disease damage
    on June 19, 2026 at 5:59 am

    A new biomaterial made from jackfruit latex, pomegranate peel, and simvastatin could transform the treatment of severe gum disease. Early tests suggest it not only combats infection and inflammation but may also help rebuild lost bone and tissue around teeth.

  • Scientists May Have Found What Really Triggers Alzheimer’s Disease
    on June 19, 2026 at 2:49 am

    Scientists may have uncovered a hidden trigger behind Alzheimer’s disease. Instead of plaques being the root cause, amyloid beta appears to interfere with tau, a protein that helps keep neurons functioning properly. This disruption could set off the damage that eventually leads to the disease’s most recognizable brain changes.