Regularly speaking two languages, and having done so for all of one's life, delays symptoms of cognitive decline and dementia in a study of older adults in Barcelona.

An exercise protocol that stimulates motor and cognitive skills mitigates gait freezing, a common and debilitating symptom of Parkinson's disease characterized by inability to move the feet.

Immune cells surrounding the brain called gamma delta T cells produce the cytokine IL-17, which affects brain function and neural interaction and causes anxious behaviors in mice.

A microneedle patch with a paper sensor may be a new non-invasive and painless way to test glucose levels, which could help to monitor pre-diabetes.