Fewer Teens Are Using E-Cigarettes and Other Types of Tobacco
Fewer teens are using e-cigarettes and other types of tobacco, according to a new study by the Centers for Disease Control and Prevention.
The effects of nicotine on the parts of the brain involved with addiction are similar to the effects of cocaine, according to a study using rat brain tissue. The study found that one 15-minute exposure to nicotine caused a long-term increase in the excitability of nerve cells involved in reward.
The researchers said this study, which indicates that nicotine and cocaine both affect the reward system of the brain, may help explain why so many people have a difficult time quitting smoking, and why so many people who experiment with cocaine end up becoming addicted.