World No Tobacco Day is being observed across the world on Monday to highlight smoking related health hazards and create awareness about the issue. Smoking not only pollutes the atmosphere but is also injurious to health, which causes a number of diseases, especially related to heart. <br/> <br/>In observance of the day, the World Health Organization is urging global action to protect women and girls against the ill effects caused by tobacco use. It is calling for a ban on all tobacco advertising, especially on those targeting women and girls in developing countries. <br/> <br/>A WHO new survey on youth smoking in 151 countries indicates almost as many girls use tobacco as boys. And in some countries, including Bulgaria, Mexico, New Zealand and Nigeria, more girls are using tobacco than boys. The director of WHO's tobacco free initiative, Douglas Bettcher, calls this an alarming sign. <br/> <br/>The WHO says tobacco-related illnesses, such as heart attacks, strokes and cancers, kill more than five-million people a year. About 1.5 million of them are women. <br/> <br/>Report says, men account for 80 percent of the world's one-billion smokers. In large emerging markets, such as China and India, 60 percent of men smoke. Three to five percent of the smokers are women.