A familiar mouth bacterium best known for causing cavities may also be quietly influencing the brain. Scientists found that ...

A new UCLA Health study links long-term residential exposure to the pesticide chlorpyrifos with a substantially higher risk of developing Parkinson’s disease. A study led by UCLA Health reports that p ...

Researchers at McGill University have uncovered a surprising twist in how dopamine affects movement, overturning a ...

This perspective argues that Parkinson’s disease may involve functional iron deficiency, where bioavailable iron is limited despite normal or elevated total iron in the brain. The authors propose that ...

A McGill-led study shows dopamine provides a steady background signal for movement rather than controlling individual action speed or force, revealing a more complex role in Parkinson’s disease. Trump ...

A new study shows dopamine isn’t the brain’s movement “gas pedal” after all. Instead of setting speed or strength, it quietly enables movement in the background, much like oil in an engine. When ...

In 2025, MLive in Michigan and AL.com in Alabama investigated the current use of paraquat, a heavily regulated weed killer that’s the subject of thousands of lawsuits claiming it’s linked to Parkinson ...