There are many dangerous substances in cigarette smoke, but I will just discuss the most dangerous three of them.
Nicotine is a dangerous drug because it is strongly addictive, and it also causes blood vessels to contract (technically it is a vasoconstrictor) which reduces blood circulation.
Tar, also known as polycyclic aromatic hydrocarbons, is a powerful carcinogen; it causes cancer.
Carbon monoxide reduces the oxygen carrying capacity of the blood (it bonds to hemoglobin and prevents it from carrying oxygen molecules).
Many are found in total there are 599 ingredients that are deadly in cigarettes
Three dangerous substances in cigarettes are: Nicotine: a stimulant drug that increases the heart rate and blood pressure Carbon monoxide: a poisinous gas that blocks the transport of oxygen by hemoglobin in the blood. it decreases the blood's ability to supply oxygen to its tissues, depriving the heart and other organs of the oxygen they need to function. Tar: contains a number of compounds that have been shown to cause cancer. However, there are 4,000 substances, including carcinogens, that can be found in cigarettes.
Substances found in electronic cigarettes include propylene glycol, glycerin, nicotine, water, and flavorings. There are also nicotine-free varieties, and some are flavored in ways that are not possible with traditional cigarettes.
EColi bacteria is a very dangerous and deadly bacteria that is found on food.
carbon monoxide
Actually, yes. In the time of the war to end all wars (WW1) , cigarettes were used as steroids, not knowing that they were lethal and deadly. Scientists eventually found this out, and it lead up to today.
Both are addictive and make your teeth a different color. However, cigarettes are really deadly since it has chemicals that are not found, say, in a organic tobacco leaf. To give an idea, cigarettes have tar, nicotine etc.
it is found from a plant
Nicotine found in cigarettes speeds up the nervous system.
nicotine ashes and lung cancer.
Bulimia is not "used". It is a dangerous and sometimes deadly eating disorder. It can affect anyone, but usually is found in girls between the ages of 14 and 28.
Tar