Image of opioid pills
As Zachary Pennington watched friends and family grapple with substance dependency and anxiety disorders, he knew he wanted to find a way to help.
  • BrainFacts/SfN
How much coffee is too much? Learn how caffeine affects the human brain in this video.
  • PHD Comics
Experiments with mice show how much cocaine exposure physically changes the brain.
  • BrainFacts/SfN
Although legal, alcohol is addictive. Together, alcohol abuse and alcohol addiction — sometimes referred to as alcoholism or alcohol dependence — are among the nation's major health problems.
  • BrainFacts/SfN
Despite definitive proof that smoking can be fatal, nicotine still is one of the most widely abused substances. In fact, tobacco kills more than 440,000 U.S. citizens each year — more than alcohol, cocaine, heroin, homicide, suicide, car accidents, and HIV combined.
  • BrainFacts/SfN
Psychostimulants, including cocaine and amphetamines, have become increasingly popular in the United States. In 2009 an estimated 4.8 million people age 12 and older had abused cocaine.
  • BrainFacts/SfN
Drug abuse is one of the nation's most serious health problems. About 9 percent of Americans, more than 22 million people, abuse drugs on a regular basis. Drug abuse, including alcohol and nicotine, is estimated to cost the U.S. more than $600 billion each year.
  • BrainFacts/SfN
Humans have used opiate drugs, such as morphine, for thousands of years, but these are often highly addictive and dangerous to one's health.
  • BrainFacts/SfN
Scientist targeted by animal rights activists asks about the ethics of inaction.
  • BrainFacts/SfN
Learn about the science underlying the effects of alcohol on human biology and behavior in this interactive teaching unit from the National Institutes of Health.
  • National Institutes of Health
This Web resource highlights the valuable role that animals play in biomedical research. The anatomy of the reward pathways in the human brain and the rat brain are compared to emphasize their similarities.
  • University of Utah
Teaching packets for teachers, aimed at secondary school students. Learn how the brain's reward center works, and what happens in the brain when a person uses cocaine, opiates (heroine), or marijuana.
  • National Institute on Drug Abuse
In this lesson by the American Association for the Advancement of Science, students learn how alcohol affects different parts of the brain, which in turn affects behavior.
  • American Association for the Advancement of Science

3D Brain

An interactive brain map that you can rotate in a three-dimensional space.