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Smoking increases your heart rate, tightens your major arteries, and can cause irregular heartbeats, which make your heart work harder. Smoking also raises your blood pressure, which is another major risk factor. Nicotine is the main active ingredient in cigarette smoke, but other chemicals and compounds, such as tar and carbon monoxide, are also harmful to the heart in many ways.
Factors affecting cardiovascular disease
Smoking increases your heart rate, tightens your major arteries, and can cause irregular heartbeats, which make your heart work harder. Smoking also raises your blood pressure, which is another major risk factor. Nicotine is the main active ingredient in cigarette smoke, but other chemicals and compounds, such as tar and carbon monoxide, are also harmful to the heart in many ways.