Monty Python Got It Wrong About Medieval Disease

In medieval Denmark, people could pay for more prestigious graves closer to the church — a sign of wealth and status. But when researchers examined hundreds of skeletons, they discovered something unexpected: even people with stigmatized diseases like leprosy were buried in these high-status spots. Instead of excluding the sick, many communities appear to have treated them much like everyone else.

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Scientists turn brain cells into Alzheimer’s plaque cleaners

Scientists have developed a promising new approach to treating Alzheimer’s disease by turning ordinary brain cells into powerful plaque-clearing machines. Instead of requiring frequent antibody infusions like current therapies, the experimental treatment uses genetically engineered astrocytes — abundant support cells in the brain — that are equipped with a CAR “homing device” similar to those used in cancer immunotherapy.

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Cannabis study finds THC can create false memories

THC doesn’t just blur memories—it can create new ones that never happened. In a controlled experiment, cannabis users were much more likely to recall words that were never shown and struggled with tasks like remembering to do something later. Researchers found that THC disrupted many different memory systems at once. Surprisingly, moderate doses caused memory problems similar to higher doses.

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Scientists discover molecule that stops aggressive breast cancer in its tracks

Scientists at Oregon Health & Science University have developed a new molecule that could open the door to treating triple-negative breast cancer, one of the most aggressive and difficult-to-treat forms of the disease. The compound, called SU212, targets and disables a key enzyme that cancer cells rely on to fuel their growth. In tests using humanized mouse models, the molecule caused tumors to shrink and slowed the spread of cancer by forcing the enzyme to break down.

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Researchers find alarming Alzheimer’s pattern in rural America

A new analysis of more than 422,000 patients reveals a stark Alzheimer’s care gap between Maryland’s urban and rural communities. Rural regions often lack hospitals and dementia specialists, forcing older patients to travel farther for diagnosis and treatment. Researchers found areas with high Alzheimer’s death rates but surprisingly low diagnosis rates, suggesting many cases may never be identified.

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Hidden metabolism found operating inside the cell nucleus

Researchers have found hundreds of metabolic enzymes attached to human DNA inside the cell nucleus. Different tissues and cancers show unique patterns of these enzymes, forming a “nuclear metabolic fingerprint.” Some of the enzymes gather around damaged DNA to assist with repair. The discovery reveals an unexpected link between metabolism and gene regulation that could influence how cancers grow and respond to treatment.

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Popular pre-workout supplements linked to dangerous sleep loss

Pre-workout supplements promising extra energy for workouts may come with a hidden cost: severely reduced sleep. A study of people aged 16–30 found users were more than twice as likely to sleep five hours or less per night. Many of these products pack huge doses of caffeine and stimulants that can linger for hours. Researchers say the findings raise concerns about the impact on young people’s health and development.

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Scientists finally reveal why mint feels cold

Scientists have revealed how the body’s microscopic cold sensor, TRPM8, detects both chilly temperatures and the cooling effect of menthol. The discovery finally shows how the sensation of “cool” works at the molecular level—and could inspire new treatments for pain and eye disorders.

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This ancient sea creature may already have had a brain

Advanced 3D reconstructions of the comb jelly’s aboral organ reveal a sensory system far more complex than scientists expected. The organ contains a wide variety of specialized cells and is closely linked to the animal’s nerve network, allowing it to coordinate behavior and orientation in the water. Researchers say it may function as a primitive brain-like center. The discovery suggests that centralized nervous systems might have evolved independently in different animal lineages.

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Scientists discover the switch that revives exhausted cancer-fighting T cells

Scientists have uncovered new genetic rules that determine whether the immune system’s “killer” T cells remain powerful long-term defenders or become worn out and ineffective. By building a detailed genetic atlas of CD8 T cell states, researchers identified key molecular switches that push these cells toward either resilience or exhaustion. Remarkably, disabling just two previously unknown genes restored the tumor-killing power of exhausted T cells while preserving their ability to provide lasting immune protection.

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