Health & Fitness

AI tools designed to diagnose cancer from tissue samples are quietly learning more than just disease patterns. New research shows these systems can infer patient demographics from pathology slides, leading to biased results for certain groups. The bias stems from how the models are trained and the data they see, not just from missing samples. Researchers also demonstrated a way to significantly reduce these disparities.

from Top Health News -- ScienceDaily https://ift.tt/u31aRto

A missing brain molecule may be disrupting neural wiring in Down syndrome, according to new research. Replacing it in adult mice rewired brain circuits and improved brain flexibility, challenging the idea that treatment must happen before birth.

from Top Health News -- ScienceDaily https://ift.tt/nP4qEIG

A rare tick-borne allergy linked to red meat has now been confirmed as deadly for the first time. A healthy New Jersey man collapsed and died hours after eating beef, with later testing revealing a severe allergic reaction tied to alpha-gal, a sugar spread by Lone Star tick bites. Symptoms often appear hours later, making the condition easy to miss. Researchers warn that growing tick populations could put more people at risk.

from Top Health News -- ScienceDaily https://ift.tt/ZS2W57E

Kimchi may do far more than add flavor to meals—it could help fine-tune the human immune system. A clinical study using advanced single-cell genetic analysis found that regular kimchi consumption strengthens immune defenses while preventing harmful overreactions. Researchers observed improved activity in key immune cells, with effects varying depending on fermentation methods.

from Top Health News -- ScienceDaily https://ift.tt/iN8Ev20

Researchers used miniature human brains grown in the lab to uncover why certain genetic mutations lead to abnormally small brains. Changes in actin disrupted the orientation of early brain cell divisions, causing crucial progenitor cells to disappear too soon. This reduced the brain’s ability to grow normally. The work offers a clear cellular explanation for microcephaly linked to Baraitser-Winter syndrome.

from Top Health News -- ScienceDaily https://ift.tt/C4rk8FR