navi mumbai as the city observed world no tobacco day on may 31 the theme this year was tobacco threatens us all this reinforces the fact that tobacco consumption compromises the health and wellbeing of not only those who smoke but everyone else around them like children youth and adults alike its use can lead to dangerous consequences for everyonesmokers passive smokers as well as those using smokeless products can affected with cancer leading to early death therefore creating awareness among and help reducing the use of tobacco can help people live a healthy life said city doctors according to navi mumbai statistics almost 50 adult smokers are male while 20 are women health issues are seen in both smokers and passive smokers but among yougsters taking to smoking the rish is higher dr prashant chhajed chest physician and pulmonologist fortis vashi said cigarettes have replaced bidis among the upper class cigarettes are being replaced by cigars that have a high concentration of tobaccospecific nitrosamines tsnas which is most potent cancer causing substances tobacco smoke is made up of thousands of chemicals including at least 70 known to cause cancerhe added that nicotine the addictive drug that is the key stimulant smokers look for is one of the harshest chemicals those who use snuff and chewing tobacco are also affected even though tobacco is not burnt in this form like cigarettes or cigars it still contain a variety of potentially harmful chemicals like high levels of tsnas he addedthe most common cancer is lung and oral in men and breast and cervix in women smokeless tobacco products are less deadly than cigarettes on an average they kill fewer people than cigarettes smokeless products are often promoted as a less harmful alternative to smoking but they are still linked with cancer especially oral dr chhajed saiddr suresh joshi director paediatric and congenital heart centre at wockhardt hospital cautions pregnant women from smoking he said cigarette smoke or consuming tobacco contains thousands of harmful chemicals when a woman smokes during pregnancy these toxins enter her bloodstream and increase the risk of fetal injury they can damage a babys brain and make it difficult for the child to get enough oxygen