People can learn techniques to counter the stress response:

• Relaxation response techniques: deep abdominal breathing, focus on a soothing word (such as peace or calm), visualization of tranquil scenes, repetitive prayer, yoga, and tai chi.
• Physical activity. Exercise, such as taking a brisk walk shortly after feeling stressed, not only deepens breathing but also helps relieve muscle tension.
• Social support. Confidants, friends, acquaintances, co-workers, relatives, spouses, and companions all provide a life-enhancing social net — and may increase longevity.

When someone confronts an oncoming danger, the eyes or ears (or both) send the information to the amygdala, an area of the brain that contributes to emotional processing. When it perceives danger, it instantly sends a distress signal to the hypothalamus.

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