A short spinning session can trigger the same biochemical indications as a heart attack - a reaction that is probably both natural and harmless, but should be borne in mind when people seek emergency treatment for chest pain, reveals a study from the Sahlgrenska Academy at the University of Gothenburg, Sweden. Heart attacks increase the secretion of enzymes known as cardiac biomarkers, which can be measured using a simple blood test. This is important for rapid diagnosis and initiation of treatment...

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