Nicotine is the chemical in cigarettes that makes them addictive. About 85% of smokers are addicted to nicotine. Higher levels of nicotine in a cigarette can make it harder to quit smoking. The amount of nicotine in cigarettes has steadily increased in the past decade. Higher nicotine levels have been found in all cigarette categories, including "light" brands.
Some researchers feel nicotine is as addictive as heroin. In fact, nicotine has actions similar to heroin and cocaine,...Read more
Many smokers have misperceptions about nicotine, which often result in not using evidence-based treatments when quitting. Misperceptions... Read more »
When we give our children with ADHD Ritalin, we can see the changes in them. They may be able to sit still. They may be able to concentrate... Read more »
How does the brain work? What happens to the brain of a person with Alzheimer's disease? Visit Inside the Brain: An Interactive Tour on the... Read more »