On World No Tobacco Day (WNTD), observed every year on May 31, doctors mentioned that the general perception among Indians that smokeless or chewing tobacco causes less harm than cigarettes and bidis has to be shattered.

WNTD this year embodies the theme 'Tobacco and Heart Disease', highlighting the link between tobacco and cardiovascular diseases, including stroke, which together are the world's leading causes of death. It is commonly known that smoking increases the risk of heart disease but the fact is that smokeless forms of tobacco are equally harmful. Tobacco consumption, in any form, does not spare any body part from its harmful effects, Amit Goyal, from the department of otorhinolaryngology at All India Institute of Medical Sciences (AIIMS), Jodhpur said.

Even smokeless tobacco causes similar ill effects. Apart from causing direct damage to the vessels of our body, it significantly increases the mortality rate following a heart attack in people consuming smokeless tobacco, he added. According to Pawan Singhal, ENT surgeon at SMS Hospital, Jaipur and state patron of Voice of tobacco victims (VOTV), smoking tobacco causes exposure to a lethal mixture of more than 7,000 toxic chemicals, including at least 70 known carcinogens that can damage nearly every organ system in the human body.

Tobacco use causes cancer, chronic obstructive pulmonary disease, cardiovascular disease, and respiratory disease. Newly identified risks from smoking include renal failure, intestinal ischemia, and hypertensive heart disease, he said. In fact, the government's health expenditure is more than the revenue and employment generated by all forms of tobacco sale and manufacturing, experts said.

Sanjay Seth, Trustee Sambandh Health Foundation (SHF) said tobacco use is estimated to cause about 10 per cent of all cardiovascular (CV) disease. Given the large burden of CV disease in India, the impact of this is huge. While, governments are budgeting large outlays for setting up healthcare facilities there should be greater focus on prevention strategies, chief among them being reduction of tobacco usage, he said.

Notably, tobacco use is classified as 'disease' under International classification of diseases (ICD-10). This is because the quit rates are very low - only about 3 per cent in India, Seth said. With such a low probability of quitting and a high probability of tobacco use leading to a multitude of diseases, the prevalence of tobacco has been rightly termed as the tobacco epidemic, he said.