Scientists reveal how much exercise you really need to protect your heart

Adults may need far more weekly exercise than current guidelines recommend to achieve a major reduction in the risk of heart attack and stroke, according to findings from an observational study published online in the British Journal of Sports Medicine.

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A protein older than blood circulation could transform cancer immunotherapy

An immune molecule that appeared in evolution long before blood circulation may help improve cancer immunotherapy. Scientists at Nagoya University in Japan discovered that complement C3 can prevent immune-suppressing cells from building up inside tumors, but only when the protein is produced locally within the tumor. C3 traveling through the bloodstream did not influence how well treatment worked.

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Scientists tracked 12 people in Antarctica for 10 months—what happened could shape future Mars missions

Long space missions can force small crews to endure isolation, cramped living conditions, and intense psychological pressure for months at a time. To better understand how those conditions shape teamwork, an international research group studied a ten-month overwintering mission at Concordia Station in Antarctica.

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Scientists discover a hidden brain shift that begins around age 50

A study funded by the National Institutes of Health (NIH) has uncovered a major shift in the immune environment of the hippocampus, the part of the brain that plays a central role in learning and memory. The findings suggest that this immune remodeling begins in midlife and may help explain how aging contributes to the long lasting brain inflammation often seen in neurodegenerative diseases.

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A single dose reversed autism-like symptoms in adult mice within hours

A UCLA Health study in mice has found that inflammation during pregnancy can produce lasting autism-like changes in offspring. The researchers also discovered that many of the resulting brain and behavioral effects could be improved rapidly in adulthood, although only temporarily, with a single dose of the immune-suppressing drug rapamycin.

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Oral GLP-1 drugs may quiet the brain’s food craving circuit

Popular weight-loss and diabetes medications such as semaglutide and Ozempic belong to a broader group known as GLP-1 drugs. A study funded by the National Institutes of Health (NIH) has now identified a previously unrecognized way that some newer oral drugs in this class may affect the brain.

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Ozempic and Mounjaro linked to a surprising hair loss risk

GLP-1 medications commonly used to manage type 2 diabetes and obesity may be associated with a modest increase in hair loss, according to a study published by The BMJ on July 22, 2026.

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Colorectal cancer warning signs younger adults should never ignore

Colorectal cancer has become the leading cause of cancer related death among people younger than 50. Although routine screening generally begins at age 45 for adults at average risk, warning signs can appear earlier and should be discussed with a health care provider at any age.

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Alzheimer's tau protein has a surprising secret role in memory

New research has revealed that tau, a protein best known for its connection to Alzheimer's disease, is also essential for creating long lasting memories. The discovery provides new insight into how healthy memory works and could help guide future efforts to develop treatments for dementia.

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Experimental drug reverses severe fatty liver disease by repairing the gut

An experimental drug developed at Michigan Medicine has shown the ability to reverse severe fatty liver disease in animal studies by restoring gut health. The findings, published in The Journal of Clinical Investigation, suggest that targeting the connection between the gut and liver could offer a promising new approach for treating metabolic dysfunction-associated steatohepatitis (MASH).

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