1.   Although they are sad and say they feel lethargic, their stress hormones are seething.

2.   And in studies of primates in the wild, researchers find that subordinate animals show higher levels of stress hormones.

3.   Animal studies suggest that besides combating cancer, melatonin might help control cholesterol, regulate blood pressure and modulate the release of heart-killing stress hormones.

4.   Anger and bitterness can produce stress hormones within the body.

5.   Beta-blockers prevent overstimulation of the cardiovascular system caused by stress hormones released by the sympathetic nervous system.

6.   Blood tests for stress hormones show the animals also are calmer in the face of novelty or threat.

7.   A recent Cornell University study concluded that even moderate noise elevates heart-damaging stress hormones.

8.   But elevated stress hormones can cause reproductive and other problems, the researchers say, so measuring hormones could provide warning of more severe effects to come.

9.   Emotional tears remove stress hormones from the body.

10.   For example, rats given injections of adrenaline after being conditioned to avoid a mild shock perform better than those with lower levels of the stress hormone.