These hormones cause the heart to beat faster, blood pressure to rise, muscles to tense, and vision become more acute. Sweating increases to cool the body. Extra insulin is produced to metabolize energy. The other also alerts the body to be on the defensive, but is not as alarming or threatening. Everyone faces some sort of stress each day.
Stress can also play a role in development of heart disease and other serious disorders.
Doctors are recommending Tai Chi as a means to ease the weakness and lack of muscle control which are symptomatic of Multiple Sclerosis. Tai Chi is used here as a gentle, calming exercise which helps the patient to maintain control of nerve and muscle, and ease the tensions that illness causes.