Some people have a "natural alarm clock" allowing them to wake up when they want. This is actually caused by a burst of the stress hormone adrenocorticotropin.
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Crying literally alleviates stress and uniquely allows humans to decrease feelings of anger and sadness.
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The levels of two stress hormones, cortisol and epinephrine which suppress the body's immune system, will actually drop after a dose of laughter.
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It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
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It has been scientifically proven that stroking a cat can lower one's blood pressure!
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Stress can result in more headaches as a result of the body rerouting blood flow to other parts of the body.
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