Study shows the way stress may harm your heart

Scientists said Thursday they may have uncovered a biological explanation for the long suspected link between stress and heart disease. People with a highly active amygdala -- a region of the brain involved in stress processing -- also have a higher risk of heart disease and stroke, the researchers revealed. A hard-working amygdala was also linked to increased bone marrow activity and inflammation of the arteries, which may explain the higher heart disease and stroke risk, the team said.