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'''Stress''' is the [[emotion|emotional]] and physical tension brought on a person’s reaction to the demands of life. Stress frequently causes anxiety, irritability, and inability to concentrate. Stress can also lead to headaches, and a rapid heartbeat.<ref>http://ghr.nlm.nih.gov/ghr/glossary/stress</ref>

'''Stress''' is the [[emotion|emotional]] and physical tension brought on a person’s reaction to the demands of life. Stress frequently causes anxiety, irritability, and inability to concentrate. Stress can also lead to headaches, and a rapid heartbeat.<ref>http://ghr.nlm.nih.gov/ghr/glossary/stress</ref>

Stress also refers to the emphasis given to some [[syllable]]s in [[word]]s.<ref>[http://www.wordiq.com/definition/Vocal_stress Vocal stress]</ref>

Stress also refers to the emphasis given to some [[syllable]]s in [[word]]s. <ref> [http://www.wordiq.com/definition/Vocal_stress Vocal stress]</ref>

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"Emotionally induced illness" John A. Schindler.

Author John A. Schindler, M.D. introduced the powerful concept of EII, or "emotionally induced illness," long before most physicians were aware of the connection between emotions and physical health. <ref>[http://www.goodreads.com/book/show/1127502.How_To_Live_365_Days_A_Year How To Live 365 Days A Year.] </ref>

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