These changes may interfere with brain activity that suppresses pain.

VOA: special.2011.05.03

Other kinds of operations can block the spread of electrical activity in the brain.

VOA: special.2010.10.26

Also,physical activity is known to improve the brain's ability to repair itself.

VOA: special.2010.07.07

"When we plotted the circuits in the brain against their childhood lead blood lead levels, we found that those with a higher blood lead measurement had less activity in the part of the brain normally left to do the attention tasks,"

VOA: standard.2009.12.19