The blue neck Shiva called Neelkanth symbolizes that one should neither take out the vices or negative emotions nor suppress them. Instead one should alter or modify them.

The blue colour in mythology symbolizes slow poison that includes attachments, anger, greed, desires and ego. Blue neck means to hold on the negative emotions temporarily so that it can be neutralized at appropriate time.

Suppressed anger releases chemicals which can lead to acidity, asthma, angina, future heart attacks and diarrhea etc. Similarly expressed anger can cause social unhealthiness and acute heart disease.

The only way to mange anger is to take the right and not the convenient action. One should neutralize anger by willful cultivation of opposite, positive of different thoughts.

Anger is a known risk factor for heart blockages. Anger can evoke physiological responses that are potentially life threatening in the setting of underlying heart blockages. It has a dominant influence on the severity, frequency, and treatment of angina.

This Vedic message of Shiva is being validated by many western scientists.

Anger has many phases

1. Anger Expression Inventory
2. Assesses anger frequency (trait anger)
3. Anger intensity
4. Anger expression (anger–out)
5. Anger suppression (anger–in)
6. Anger recall.

Both anger–in and anger–out are associated with heart blockades.

a. Dr. C. Noel Bairey Merz, from Women’s Health at Cedars–Sinai Medical Center has shown women who outwardly express anger (anger–out) are at increased risk especially if they also have other risk factors like age, diabetes and high cholesterol levels. The findings are a part of Women’s Ischemia Syndrome Evaluation Study, a multi–center, long–term investigation sponsored by the National Heart, Lung and Blood Institute.

b. Anger–in is also related to severity of blockages. Dr. TM Dembroski in 1985 has shown that potential for Hostility and Anger–In are significantly and positively associated with the heart blockages disease severity, including angina symptoms and number of heart attacks. Suppressed anger is also associated with increased carotid arterial stiffness in older adults, a condition making them prone to future heart attacks and paralysis.

c. In univariate correlational analysis by Anderson DE from National Institute on Aging, Baltimore, Maryland in 2006 has shown a significant positive association of anger–in with artery stiffness.

d. Suppressed anger has also been shown to increase blood pressure by Thomas and group from University of Tennessee.

e. Recall of suppressed anger has been shown by Dr D Jain in 2001 from Yale University to be associated with angina, heart LV dysfunction and rise in upper blood pressure.

f. G Ironson and colleagues from Department of Psychology, University of Miami in 1992 has shown that anger recall produces more stress than the actual stress in a treadmill. Intensity of anger was associated with severity of angina. In the study vasoconstriction only occurred with high levels of anger. There also showed that there was no narrowing of non–narrowed arteries indicating that anger recall produce coronary vasoconstriction in previously narrowed coronary arteries.