http://www.jiva.com/ayurveda/about-ayurveda/119.html Each of us has experienced stress in our lives, which can be brought about by so many reasons: financial concerns, family problems, work pressure, and so on. Stress can also be brought about by environmental factors, such as not receiving sufficient natural light and air, chemicals from food, and the intake of stimulants, including caffeine, tobacco, and alcohol. According to Ayurveda, stress is a state where the mind is imbalanced. The mind is considered to be balanced when it is not agitated, and is firm and stable. When the mind is in a stable state, the individual has the maximum potential to act or behave in ways that continue to keep the mind in a balanced state. More specifically, the mind has three states or “ gunas ”. They are “ sattva ” ( knowledge, purity), “ rajas ” (action, passion) and “tamas” (inertia, ignorance). Mental disorders or imbalances are caused when “ sattva ” decreases and “ rajas ” and “ tamas
Compendium on Work, Health , Learning , Social and Spiritual Aspects of Leading a Complete Life