Stress and Your Heart. More research is needed to determine how stress contributes to heart disease â the leading killer of Americans. But stress may affect behaviors and factors that increase heart disease risk: high blood pressure and cholesterol levels, smoking, physical inactivity and overeating.
Black or dark stools are a common side effect that may be the harmless result of unabsorbed iron. Whether you are taking iron supplements alone or a multivitamin with iron, you may experience this. Check with your doctor or healthcare provider to find the cause of black stools.
Causes of Black stool: The following medical conditions are some of the possible causes of Black stool. There are likely to be other possible causes, so ask your doctor about your symptoms. Blood in stool - see causes of blood in stool and rectal bleeding for various possible diagnoses. Internal bleeding.