Light, incremental physical activity can help reduce brain aging

(HealthDay)—Incremental physical activity (PA), even of light intensity, is associated with larger brain volume and healthy brain aging, according to a study published online April 19 in JAMA Network Open. Using data from the Framingham Heart Study, Nicole L. Spartano, Ph.D., of the Boston University School of Medicine, and colleagues…

Does a bigger brain make you smarter?

Increasing the size of neural circuits in the brain can boost learning performance, but this increased connectivity also has the potential to impede learning, new research has revealed. Cambridge neuroscientists predict that there is an “ideal” brain circuit size suited to carrying out particular tasks. The study, published in the…

Stressed, anxious? Ask the brain

Our actions are driven by “internal states” such as anxiety, stress or thirst—which will strongly affect and motivate our behaviors. Not much is known about how such states are represented by complex brain-wide circuits, including sub-cortical structures such as the amygdala. In a study recently published in Science, the group…