77 to 92 percent (at least 4 out of 5) people who try smoking keep smoking.
"the FDA cited several surveys estimating an addiction rate of 77-92% among smokers"
Tob Control 1999;8:210-213 doi:10.1136/tc.8.2.210 "Blowing smoke: how cigarette manufacturers argued that nicotine is not addictive" by JOSHUA SHARFSTEIN
Yes it did have nicotine that is why people get addicted to it
yes
some people have genes that make it easier for them to become addicted to tobacco
they are younger people. if they get addicted now they could be that way forever.
Because of chemical reaction in the brain
They manufacture the products and spend billions every year on advertising, trying to get people addicted to them,
3 and your hooked.
If you inject just once
A definitive answer cannot be given, but many millions are.
47%
No Most everyone who smokes becomes addicted. One in Five people become smokers. Maybe that's what you were thinking.
Nicotine