Inflammation in former football players was tied to limbic white matter damage and worse memory, revealing a potential pathway linking repetitive head impacts to later cognitive decline.

The limbic system helps regulate emotional and social processing, as well as learning, motivation, and memory. It consists of structures that lie beneath the outer, wrinkly part of the brain and above ...

The limbic system is responsible for motivation and emotion, with one particularly important part, the amygdala, playing a key role in the fight-or-flight response and feelings of fear and anger.

As we work on overcoming what scares us, a new plasticity becomes available in our brain, and fear strikes out.