People on the brink of a heart attack experience profuse sweating without any apparent cause; they often wake up in a cold sweat and may have an unnatural pallor to their face. Sweating during a heart attack may be due to activation of the sympathetic nervous system. The body does this in reaction to either the pain or to low blood pressure. Profuse sweating is also a symptom of other heart-related problems. The sweats might strike during the night or day. Anyone who begins sweating without any increase in activity could be experiencing a heart-related issue. Sweating can occur with a variety of health problems and, in and of itself, doesn't indicate heart disease, but it should be medically examined.
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