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Exposure to air pollution may harm brain health of older adults

Long-term exposure to high levels of air pollution may harm the brain health of older adults in England, finds a new study.

Could targeting Parkinson’s outside of the brain improve symptoms?

Parkinson’s doesn’t just affect movement and the brain — it may also impact the heart, according to new research. Scientists suggest that targeting a key protein outside of the brain could help manage Parkinson’s-related heart issues.

17 modifiable risk factors shared by stroke, dementia, and late-life depression

In a new extensive systematic review, researchers identified 17 modifiable risk factors that are shared by stroke, dementia, and late-life depression. Modifying any one of them can reduce your risk of all three conditions. The findings provide evidence…

Key differences between visual- and memory-led Alzheimer’s discovered

Differences in the distribution of certain proteins and markers in the brain may explain why some people first experience vision changes instead of memory loss in Alzheimer’s disease, finds a new study.

Medicinal cannabis is linked to long-term benefits in health-related quality of life, study finds

Patients prescribed medicinal cannabis in Australia maintained improvements in overall health-related quality of life (HRQL), fatigue, and sleep disturbance across a one-year period, according to a new study. Anxiety, depression, insomnia, and pain als…

How the brain evaluates rewards

Researchers have gained a new understanding of how the brain processes reward and risk information. Neuroscientists show how nerve cells in the so-called amygdala not only encode the probability and magnitude of rewards, but also dynamically process th…

Exposure to air pollution in childhood is associated with reduced brain connectivity

A new study has found that children exposed to higher levels of air pollution in early and mid childhood have weaker connections between key brain regions. The findings highlight the potential impact of early exposure to air pollution on brain developm…

New study links lower proportions of certain sleep stages to brain changes associated with Alzheimer’s disease

New research reveals that lower proportions of specific sleep stages are associated with reduced brain volume in regions vulnerable to the development of Alzheimer’s disease over time.

Discrimination-related depression, anxiety pronounced among multiracial, White, Asian populations

A new study found that over half of US adults experienced some form of discrimination, and individuals with high exposure to discrimination have more than five times the chances of screening positive for depression, and five times the chances of screen…

PET imaging confirms direct involvement of dopamine in cognitive flexibility

Scientists have confirmed a neurobiochemical link between dopamine and cognitive flexibility. PET imaging shows that the brain increases dopamine production when completing cognitively demanding tasks, and that the more dopamine released, the more effi…