Note: All functions are relations, but not all relations are functions. What is a Function? A function is a specific type of relation where each input is associated with only one output.

The relationship between stress and cognitive function is a “vicious cycle,” said Dr. Amy Arnsten, a professor of neuroscience at Yale School of Medicine. Adobe Stock ...

People with elevated stress levels are more likely to experience a decline in cognitive function, a new study found, affecting their capacity to remember, concentrate and learn new things.