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.
One of the most serious possible causes of black specks in the stool is colon cancer, which refers to malignant growths in the colon, the lowest part of the digestive tract. These growths (tumors) can bleed at times and this blood can also present with speckled stool.