<p><b>Tobacco giants have added chemical substances to cigarettes</b></p> <p>Tobacco giants Philip Morris and British American Tobacco have added to <b>cigarettes</b> drastic chemical substances that suppress appetite. Of this fact attest internal documents of these Companies that include data for fifty years: from 1949 to 1999.</p> <p>Namely this explains the fact that people who have quit smoking gain weight very fast. Also tobacco Companies have made researches, adding in tobacco various chemical substances, including amphetamines and nitrous oxide also known as "laughing gas". However, till today it is not known if such <a href="http://www.cigline.net"><b>cigarettes</b></a> have reached the market or it was limited only to experiments in laboratories.</p> <p>According to experts' words, chemical additions is only one from several strategies that are successfully used by tobacco Companies during the last 50 years in order to assure people that smoking makes them well-set-up.</p> <p>Now, it becomes clear why people after they have quit smoking have started to gain weight. Scientists encourage authorities to make more rigorous rules concerning tobacco additions. They consider that consumers should know which marketing mixes are used to attract new buyers.</p>