Health & Fitness

Scientists have engineered a groundbreaking cancer treatment that uses bacteria to smuggle viruses directly into tumors, bypassing the immune system and delivering a powerful one-two punch against cancer cells. The bacteria act like Trojan horses, carrying viral payloads to cancer’s core, where the virus can spread and destroy malignant cells. Built-in safety features ensure the virus can’t multiply outside the tumor, offering a promising pathway for safe, targeted therapy.

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A groundbreaking study has found that a simple change in walking style can ease osteoarthritis pain as effectively as medication—without the side effects. By adjusting foot angle, participants reduced knee stress, slowed cartilage damage, and maintained the change for over a year.

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Scientists at UC San Diego have discovered a small but powerful section of DNA, called HAR123, that could help explain what makes the human brain so unique. Instead of being a gene, HAR123 acts like a “volume control” for brain development, guiding how brain cells form and in what proportions. The human version of HAR123 behaves differently from the chimpanzee version, possibly giving us greater flexibility in how we think and learn. This finding could also help researchers understand the roots of certain brain-related conditions, including autism.

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Scientists in Sweden have developed a groundbreaking “skin in a syringe” — a gel packed with live cells that can be applied directly to wounds or even 3D-printed into skin grafts. Designed to help the body build functional dermis rather than scar tissue, the innovation combines fibroblast cells on gelatin beads with a hyaluronic acid gel, held together using click chemistry. In a parallel advance, the team also created elastic hydrogel threads that can form tiny, fluid-carrying channels, paving the way for artificial tissues and organoid development.

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UC Berkeley scientists found oxytocin is key for quickly forming strong friendships, but less critical for mate bonds. In prairie voles, a lack of oxytocin receptors delayed bonding and reduced partner selectivity, changing how the brain releases oxytocin and affecting social behavior.

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Cambridge scientists have cracked the mystery of why cuff-based blood pressure monitors often give inaccurate readings, missing up to 30% of high blood pressure cases. By building a physical model that replicates real artery behavior, they discovered that low pressure below the cuff delays artery reopening, leading to underestimated systolic readings. Their work suggests that simple tweaks, like raising the arm before testing, could dramatically improve accuracy without the need for expensive new devices.

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A sweeping international study has revealed that when faced with complex decisions, people across cultures—from bustling megacities to remote Amazon communities—tend to rely on their own judgment rather than seeking advice. The research, spanning over 3,500 participants in 12 countries, challenges the long-held belief that self-reliance is primarily a Western trait. While cultural values influence how strongly individuals lean on their inner voice, the preference for private reflection remains a shared human tendency.

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