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Tobacco contains more than 7,000 chemicals, including tar and others that can narrow arteries and damage blood vessels. Nicotine is a highly addictive toxin found in tobacco it is heavily linked with dangerous increases in heart rate and blood pressure. Smoking tobacco unleashes poisonous gases such as carbon monoxide, which replaces oxygen in the blood – reducing the availability of oxygen for the heart.
Measures that reduce the risks to heart health posed by tobacco include making all indoor public and workplaces completely smoke-free and promoting use of tobacco package warnings that demonstrate the health risks of tobacco.
WHO estimates that the prevalence of smoking across the world has dropped from 27 per cent at the turn of the century to 20 per cent in 2016. Due to population growth, the number of smokers in the world has remained relatively stable at around 1.1 billion.
Many smokers are turning to e-cigarettes, some use the battery-powered devices containing nicotine. Although thought to be considerably safer than tobacco cigarettes, studies have linked long-term use to heart disease and cancer.
haleplushearty.org