Fitbits, smart watches and pe'dometers can monitor heart-rate.
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Some life-threatening issues and diseases caused by an unhealthy heart include: Heart attacks: Blood flow (thus, oxygen) to the heart is partially completely cut off to the heart. Heart attacks are caused by blocked arteries.
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Prepares to fight or run from danger
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Answer:
"Chronic, progressive, and relapsing disease • Biological, psychological, and sociological components • Denial • Lying and deceit • Continuation despite negative consequences • Changes in normal behavior"
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