Friday, July 5, 2013

Stress and Immune system ストレスと免疫システム

The National Cancer Institute showed a fact sheet regarding "How does the body respond during stress?" as follows:

The body responds to physical, mental, or emotional pressure by releasing stress hormones (such as epinephrine and norepinephrine) that increase blood pressure, speed heart rate, and raise blood sugar levels. These changes help a person act with greater strength and speed to escape a perceived threat.

Research has shown that people who experience intense and long-term (i.e., chronic) stress can have digestive problems, fertility problems, urinary problems, and a weakened immune system. People who experience chronic stress are also more prone to viral infections such as the flu or common cold and to have headaches, sleep trouble, depression, and anxiety.

*Therefore constant fear and anger are actually weakening our immune system.





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