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Caffeine-Related Health Problems. Caffeine increases your heart rate, elevates your blood pressure, and can contribute to the development of heart disease. Both decaf and regular coffee increase your cholesterol and homocysteine, the biochemicals that science has linked to increased risk for heart attack.
The Effect of Caffeine on Heart Rate. Caffeine stimulates the central nervous system, which increases heart rate. Photo Credit Stockbyte/Stockbyte/Getty Images. Caffeine is a widely used psychoactive drug found in many drinks, such as coffee, tea and cola.Caffeine is naturally present in the leaves and seeds of a variety of plants.nce consumed, caffeine enters your blood from the stomach and small intestine and begins to stimulate your central nervous system. Caffeine stimulates receptors located in cells within your heart to increase your heart rate.